Question

Need help with proportions. Please show work.

Answer 1

Does anybody know how to figure it out. I really need help.

Answer 2

Reverse the positions of 4 and b.

Answer 3

\[So, \frac{ a }{ b }=\frac{ 4 }{ 7 }?\]

Answer 4

\[\frac{a}{4}=\frac{b}{7}\] cross multiply get \[7a = 4b\] solve for a/b \[\frac{7a}{7} = \frac{4b}{7}\]\[\frac{a}{b} = \frac{4b}{7b}\]\[\frac{a}{b}=\frac{4}{7}\]

Answer 5

Thanks @hobbs978. Thanks you for working it all the way out.

Answer 6

no problem :P