Question

So, I know I have to setup proportions, but could someone explain why there's a specific way you set them up? For eg, I set mine up 47/x=82.8/92 but I get the wrong answer. But when it's setup as 47/x=82/73.8 it gives you the right answer. So, I tried to setup as 47/x=92/73.8 it gives the wrong answer. I'm really confused why. The only reply I've gotten so far is "there is a correct way to setup proportions", but I don't understand what the correct way is.

Answer 1

I assume by post again you actually meant post in the mathematics section again.
Though, I'll repeat what I said. Now that I know what a ratio and proportion is I need to understand how to correctly setup a proportion. : )

Answer 2

Weird, it didn't post my problem. Hold on.

Answer 3

http://prntscr.com/aajkcx
Here you go.
@skullpatrol

Answer 4

sorry, I have to go :(

Answer 5

try the khan academy on youtube

Answer 6

dude i need help

Answer 7

kikuo

Answer 8

I can try to help.

Answer 9

What's your problem?

Answer 10

ok ill medal u ok join the one after this question

Answer 11

You're back?!

Answer 12

skull patrol

Answer 13

are we all high schoolers

Answer 14

@Flower-girl Take a shot.

Answer 15

Hmm I don't know...
@mathmale

Answer 16

@pooja195

Answer 17

The trick is to identify "corresponding sides"

One way: if you know the angles in two triangles are equal, then you know the *opposite sides* corresponds

For example