Home / 3,511.08-5,251.10-3,123.79

Finding the Fourth Proportional to 3,511.08, 5,251.10 and 3,123.79

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Solution

The fourth proportional to 3,511.08, 5,251.10 and 3,123.79 is: 4,671.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.08 : 5,251.10 = 3,123.79 : x
  2. Step 2: Convert to fraction form
    3,511.08/5,251.10 = 3,123.79/x
  3. Step 3: Cross multiply
    3,511.08x = 5,251.10 × 3,123.79
  4. Step 4: Simplify right side
    3,511.08x = 16,403,304.92
  5. Step 5: Solve for x
    x = 16,403,304.92/3,511.08
  6. Step 6: Final answer
    x = 4,671.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.