Respuesta :

[tex]\begin{gathered} \text{let:} \\ w=\text{width} \\ l=\text{length} \\ k=\text{constant of proportionality} \\ l=k\cdot w \\ \text{If w=2, l=3} \\ 3=k\cdot2 \\ k=\frac{3}{2} \end{gathered}[/tex]