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Finding the Fourth Proportional to 5,747.43, 8,620.97 and 1,587.68

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Solution

The fourth proportional to 5,747.43, 8,620.97 and 1,587.68 is: 2,381.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,747.43 : 8,620.97 = 1,587.68 : x
  2. Step 2: Convert to fraction form
    5,747.43/8,620.97 = 1,587.68/x
  3. Step 3: Cross multiply
    5,747.43x = 8,620.97 × 1,587.68
  4. Step 4: Simplify right side
    5,747.43x = 13,687,356.75
  5. Step 5: Solve for x
    x = 13,687,356.75/5,747.43
  6. Step 6: Final answer
    x = 2,381.48

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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.