Home / 7,385.60-11,079.12-3,436

Finding the Fourth Proportional to 7,385.60, 11,079.12 and 3,436

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Solution

The fourth proportional to 7,385.60, 11,079.12 and 3,436 is: 5,154.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,385.60 : 11,079.12 = 3,436 : x
  2. Step 2: Convert to fraction form
    7,385.60/11,079.12 = 3,436/x
  3. Step 3: Cross multiply
    7,385.60x = 11,079.12 × 3,436
  4. Step 4: Simplify right side
    7,385.60x = 38,067,856.32
  5. Step 5: Solve for x
    x = 38,067,856.32/7,385.60
  6. Step 6: Final answer
    x = 5,154.33

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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.