Home / 5,102.20-7,646.17-2,757.15

Finding the Fourth Proportional to 5,102.20, 7,646.17 and 2,757.15

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Solution

The fourth proportional to 5,102.20, 7,646.17 and 2,757.15 is: 4,131.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,102.20 : 7,646.17 = 2,757.15 : x
  2. Step 2: Convert to fraction form
    5,102.20/7,646.17 = 2,757.15/x
  3. Step 3: Cross multiply
    5,102.20x = 7,646.17 × 2,757.15
  4. Step 4: Simplify right side
    5,102.20x = 21,081,622.14
  5. Step 5: Solve for x
    x = 21,081,622.14/5,102.20
  6. Step 6: Final answer
    x = 4,131.87

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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.