\[\boxed{\text{5.338.}}\]
\[100\ кг = \frac{100}{1\ 000} = \frac{1}{10}\ т\ \]
\[125\ кг = \frac{125}{1\ 000} = \frac{1}{8}\ т\ \]
\[250\ кг = \frac{250}{1\ 000} = \frac{1}{4}\ т\ \]
\[500\ кг = \frac{500}{1\ 000} = \frac{1}{2}\ т\ \]
\[750\ кг = \frac{750}{1\ 000} = \frac{3}{4}\ т\ \]