[tex]m_{h} \leq m_{g} \leq m_{a} \leq m_{p}[/tex] adica :
Media armonica ≤ media geometrica ≤ media aritmetica ≤ media patratica
Pentru 2 numere:
[tex] \frac{2}{ \frac{1}{a} + \frac{1}{b} } \leq \sqrt{ab} \leq \frac{a+b}{2} \leq \sqrt{ \frac{a^{2} + b^{2}}{2} } [/tex]
Pentru 3 numere:
[tex] \frac{3}{ \frac{1}{a} + \frac{1}{b} + \frac{1}{c} } \leq \sqrt[3]{abc} \leq \frac{a+b+c}{3} \leq \sqrt{ \frac{a^{2}+b^{2}+c^{2}}{3} } [/tex]
