Home / 3,927.64-5,414.56-3,123.92

Finding the Fourth Proportional to 3,927.64, 5,414.56 and 3,123.92

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Solution

The fourth proportional to 3,927.64, 5,414.56 and 3,123.92 is: 4,306.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.64 : 5,414.56 = 3,123.92 : x
  2. Step 2: Convert to fraction form
    3,927.64/5,414.56 = 3,123.92/x
  3. Step 3: Cross multiply
    3,927.64x = 5,414.56 × 3,123.92
  4. Step 4: Simplify right side
    3,927.64x = 16,914,625.20
  5. Step 5: Solve for x
    x = 16,914,625.20/3,927.64
  6. Step 6: Final answer
    x = 4,306.56

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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.