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Finding the Fourth Proportional to 3,500.81, 5,253 and 2,331.64

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Solution

The fourth proportional to 3,500.81, 5,253 and 2,331.64 is: 3,498.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,500.81 : 5,253 = 2,331.64 : x
  2. Step 2: Convert to fraction form
    3,500.81/5,253 = 2,331.64/x
  3. Step 3: Cross multiply
    3,500.81x = 5,253 × 2,331.64
  4. Step 4: Simplify right side
    3,500.81x = 12,248,104.92
  5. Step 5: Solve for x
    x = 12,248,104.92/3,500.81
  6. Step 6: Final answer
    x = 3,498.65

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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.