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Finding the Fourth Proportional to 3,763.88, 5,646.97 and 1,424.61

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Solution

The fourth proportional to 3,763.88, 5,646.97 and 1,424.61 is: 2,137.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,763.88 : 5,646.97 = 1,424.61 : x
  2. Step 2: Convert to fraction form
    3,763.88/5,646.97 = 1,424.61/x
  3. Step 3: Cross multiply
    3,763.88x = 5,646.97 × 1,424.61
  4. Step 4: Simplify right side
    3,763.88x = 8,044,694.57
  5. Step 5: Solve for x
    x = 8,044,694.57/3,763.88
  6. Step 6: Final answer
    x = 2,137.34

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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.