Home / 892-1,078

Finding the Third Proportional to 892 and 1,078

Calculator

Solution

The third proportional to 892 and 1,078 is: 1,302.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    892 : 1,078 = 1,078 : x
  2. Step 2: Convert to fraction form
    892/1,078 = 1,078/x
  3. Step 3: Cross multiply
    892x = 1,078 × 1,078
  4. Step 4: Simplify right side
    892x = 1,162,084
  5. Step 5: Solve for x
    x = 1,162,084/892
  6. Step 6: Final answer
    x = 1,302.78

Related Problems

Find third proportional to 446 and 539
Half scale
Find third proportional to 1,784 and 2,156
Double scale
Find third proportional to 894 and 1,080
Similar ratio
Find third proportional to 1,338 and 1,617
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.