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Finding the Fourth Proportional to 5,000.76, 7,498.92 and 2,660.18

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Solution

The fourth proportional to 5,000.76, 7,498.92 and 2,660.18 is: 3,989.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,000.76 : 7,498.92 = 2,660.18 : x
  2. Step 2: Convert to fraction form
    5,000.76/7,498.92 = 2,660.18/x
  3. Step 3: Cross multiply
    5,000.76x = 7,498.92 × 2,660.18
  4. Step 4: Simplify right side
    5,000.76x = 19,948,477.01
  5. Step 5: Solve for x
    x = 19,948,477.01/5,000.76
  6. Step 6: Final answer
    x = 3,989.09

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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.