\[\frac{1,6}{3} = \frac{2,4}{5x}\]
\[5x = \frac{3 \cdot 2,4}{1,6} = \frac{9}{2} = 4,5\]
\[x = \frac{4,5}{5} = 0,9.\]
\[Ответ:x = 0,9.\]