Answer
$n\lt5\frac{1}{3}$
Work Step by Step
Use the multiplication property of inequality to multiply both sides by $\frac{4}{3}$.
$\frac{3}{4}n\lt4$
$\frac{3}{4}n\times\frac{4}{3}\lt4\times\frac{4}{3}$
$n\lt\frac{16}{3}\longrightarrow $ reduce
$n\lt5\frac{1}{3}$