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Finding the Fourth Proportional to 3,989.17, 5,983.96 and 1,524.21

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Solution

The fourth proportional to 3,989.17, 5,983.96 and 1,524.21 is: 2,286.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989.17 : 5,983.96 = 1,524.21 : x
  2. Step 2: Convert to fraction form
    3,989.17/5,983.96 = 1,524.21/x
  3. Step 3: Cross multiply
    3,989.17x = 5,983.96 × 1,524.21
  4. Step 4: Simplify right side
    3,989.17x = 9,120,811.67
  5. Step 5: Solve for x
    x = 9,120,811.67/3,989.17
  6. Step 6: Final answer
    x = 2,286.39

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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.