Home / 1,417.38-1,951.13-1,229.77

Finding the Fourth Proportional to 1,417.38, 1,951.13 and 1,229.77

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Solution

The fourth proportional to 1,417.38, 1,951.13 and 1,229.77 is: 1,692.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.38 : 1,951.13 = 1,229.77 : x
  2. Step 2: Convert to fraction form
    1,417.38/1,951.13 = 1,229.77/x
  3. Step 3: Cross multiply
    1,417.38x = 1,951.13 × 1,229.77
  4. Step 4: Simplify right side
    1,417.38x = 2,399,441.14
  5. Step 5: Solve for x
    x = 2,399,441.14/1,417.38
  6. Step 6: Final answer
    x = 1,692.87

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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.