Home / 3,436.38-5,154.77-1,127.88

Finding the Fourth Proportional to 3,436.38, 5,154.77 and 1,127.88

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Solution

The fourth proportional to 3,436.38, 5,154.77 and 1,127.88 is: 1,691.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,436.38 : 5,154.77 = 1,127.88 : x
  2. Step 2: Convert to fraction form
    3,436.38/5,154.77 = 1,127.88/x
  3. Step 3: Cross multiply
    3,436.38x = 5,154.77 × 1,127.88
  4. Step 4: Simplify right side
    3,436.38x = 5,813,961.99
  5. Step 5: Solve for x
    x = 5,813,961.99/3,436.38
  6. Step 6: Final answer
    x = 1,691.89

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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.