Question

how do you know is a pair of ratios forms a proportion?

Answer 1

simplify the ratios..if they are equal then they're proportional

Answer 2

when they have the same measure of an angle and the same form.

Answer 3

for example you have the ratio \[\frac{1}{2}\]
the ratios proportional to this are:
\[\frac 24 \; , \; \frac 36 \; ,\; \frac 48 \; , \;\text{etc.}\]

Answer 4

did you get that @jrosesweet ?

Answer 5

yea thanks @igbasallote