Home / 4,979.92-7,470.57-1,692.13

Finding the Fourth Proportional to 4,979.92, 7,470.57 and 1,692.13

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Solution

The fourth proportional to 4,979.92, 7,470.57 and 1,692.13 is: 2,538.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.92 : 7,470.57 = 1,692.13 : x
  2. Step 2: Convert to fraction form
    4,979.92/7,470.57 = 1,692.13/x
  3. Step 3: Cross multiply
    4,979.92x = 7,470.57 × 1,692.13
  4. Step 4: Simplify right side
    4,979.92x = 12,641,175.61
  5. Step 5: Solve for x
    x = 12,641,175.61/4,979.92
  6. Step 6: Final answer
    x = 2,538.43

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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.