Home / 792-856

Finding the Third Proportional to 792 and 856

Calculator

Solution

The third proportional to 792 and 856 is: 925.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    792 : 856 = 856 : x
  2. Step 2: Convert to fraction form
    792/856 = 856/x
  3. Step 3: Cross multiply
    792x = 856 × 856
  4. Step 4: Simplify right side
    792x = 732,736
  5. Step 5: Solve for x
    x = 732,736/792
  6. Step 6: Final answer
    x = 925.17

Related Problems

Find third proportional to 396 and 428
Half scale
Find third proportional to 1,584 and 1,712
Double scale
Find third proportional to 794 and 858
Similar ratio
Find third proportional to 1,188 and 1,284
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.