Home / 3,932.92-5,426.22-3,146.68

Finding the Fourth Proportional to 3,932.92, 5,426.22 and 3,146.68

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Solution

The fourth proportional to 3,932.92, 5,426.22 and 3,146.68 is: 4,341.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,932.92 : 5,426.22 = 3,146.68 : x
  2. Step 2: Convert to fraction form
    3,932.92/5,426.22 = 3,146.68/x
  3. Step 3: Cross multiply
    3,932.92x = 5,426.22 × 3,146.68
  4. Step 4: Simplify right side
    3,932.92x = 17,074,577.95
  5. Step 5: Solve for x
    x = 17,074,577.95/3,932.92
  6. Step 6: Final answer
    x = 4,341.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.