## Geometry: Common Core (15th Edition)

You are given the proportion $\frac{W}{L}$=$\frac{3}{2}$ You are told the width is 5.1 cm, and length is 3.4 cm. Substitute into the proportion given. $\frac{5.1}{3.4}$=$\frac{3}{2}$ Cross multiply 3(3.4)=2(5.1) 10.2=10.2