Question

X : 5,4 = 10,2 : 1,8

Answer 1

$\frac{x}{5.4} = \frac{10.2}{1.8 } \\ x = \frac{10.2 \times 5.4}{1.8} = \frac{55.08}{1.8} = 30.6$

Answer 2

Х:5,4=10,2:1,8
1,8х=10,2*5,4
1,8х=55,08
х=55,05:1,8
х=30,6
Проверка
30,6:5,4=10,2:1,8

Answer 3

To solve this proportion, you can cross-multiply the fractions and solve for the unknown value.

5/4 = 10/2 : 1.8

Cross-multiplying gives:

5 x 2 = 10 x 4/1.8

Simplifying the right-hand side:

10 x 4/1.8 = 40/1.8 = 400/18 = 200/9

So the proportion can be written as:

5/4 = 200/9

To solve for the unknown value, we can cross-multiply again:

5 x 9 = 4 x 200

45 = 800

This is a contradiction, so there is no solution to the proportion. Therefore, the given equation is not valid.