Por el principio de Pascal :
<img src="https://tex.z-dn.net/?f=P_1%3DP_2%5C%5C%5C%5C%0A%20%5Cfrac%7BF_1%7D%7B%28r_1%29%5E2%7D%3D%20%5Cfrac%7BF_2%7D%7B%28r_2%29%5E2%7D%5C%5C%5C%5C%0AF_1%2Ah_1%3DF_2%2Ah_2%0A%20%20" />
Datos :
F1 = 4 N
F2 = ?
R1 = 3 cm
r2 = 15 cm
h1 = 1 m
h2 = ?
<img src="https://tex.z-dn.net/?f=%5Cfrac%7BF_1%7D%7B%28r_1%29%5E2%7D%20%3D%20%5Cfrac%7BF_2%7D%7B%28r_2%29%5E2%7D%5C%5C%5C%5C%0A%20%5Cfrac%7B4N%7D%7B%283cm%29%5E2%7D%3D%20%5Cfrac%7BF_2%7D%7B%2815cm%29%5E2%7D%5C%5C%5C%5C%0AF_2%3D%20%5Cfrac%7B4N%2A%2815cm%29%5E2%7D%7B%283cm%29%5E2%7D%5C%5C%5C%5C%0AF_2%3D%20%5Cfrac%7B900%7D%7B9%7DN%5C%5C%5C%5C%0AF_2%3D100N%20%20%20" />
<img src="https://tex.z-dn.net/?f=F_1%2Ah_1%3DF_2%2Ah_2%5C%5C%5C%5C%0A%284N%29%281m%29%3D%28100N%29%28h_2%29%5C%5C%5C%5C%0Ah_2%3D%20%5Cfrac%7B%284N%29%281m%29%7D%7B100N%7D%5C%5C%5C%5C%0Ah_2%3D%200.04m%5C%5C%5C%5C%0Ah_2%3D4cm%0A" />
La fuerza obtenida en el embolo mayor es : 100N
El espacio recorrido en ese émbolo es : 4 cm.