7 x
--- = ------
5 3
cross multiply
5x = 7 * 3
5x = 21
x = 4.2
Given the proportion 7/5=x/3, you can cross-multiply to find the value of x.
21=5x.
Divide both sides by 5.
x=4.2.
Hope this helps!
7.2m questions
9.6m answers