Question

Proportion Application

three gallons of paint will cover 825 squares of wall. Find how many square feet 4.5 gallons will cover.

Answer 1

Set up the proportions

`(3)/(4.5) = (825)/(x)`
Cross multiply
3x = 3712.5

Divide by 3
x = 1237.5

4.5 gallons would cover 1237.5 square feet