Home / 1,227.38-1,839.85-576.95

Finding the Fourth Proportional to 1,227.38, 1,839.85 and 576.95

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Solution

The fourth proportional to 1,227.38, 1,839.85 and 576.95 is: 864.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227.38 : 1,839.85 = 576.95 : x
  2. Step 2: Convert to fraction form
    1,227.38/1,839.85 = 576.95/x
  3. Step 3: Cross multiply
    1,227.38x = 1,839.85 × 576.95
  4. Step 4: Simplify right side
    1,227.38x = 1,061,490.82
  5. Step 5: Solve for x
    x = 1,061,490.82/1,227.38
  6. Step 6: Final answer
    x = 864.85

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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.