tolong dong gimana caranya dikasih cara yaa,secepetnya yaa

no 2
[tex] \frac{x}{3.6} = \frac{2}{3} \\ 3x = 2 \times 3.6 \\ 3x = 7.2 \\ x = \frac{7.2}{3} = 2.6[/tex]
no 3
[tex] \frac{x}{3.6} = \frac{3}{4} \\ 4x = 3 \times 3.6 \\ 4x = 10.8 \\ x = \frac{10.8}{4} = 2.7[/tex]
kemudian tentukan y
[tex] \frac{y}{4.2} = \frac{4}{3} \\ 3y = 4 \times 4.2 \\ 3y = 16.8 \\ y = \frac{16.8}{3} = 5.6[/tex]
no 1 gambarnya enggak jelas.