Home / 5,101.11-7,635.46-2,757.78

Finding the Fourth Proportional to 5,101.11, 7,635.46 and 2,757.78

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Solution

The fourth proportional to 5,101.11, 7,635.46 and 2,757.78 is: 4,127.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.11 : 7,635.46 = 2,757.78 : x
  2. Step 2: Convert to fraction form
    5,101.11/7,635.46 = 2,757.78/x
  3. Step 3: Cross multiply
    5,101.11x = 7,635.46 × 2,757.78
  4. Step 4: Simplify right side
    5,101.11x = 21,056,918.88
  5. Step 5: Solve for x
    x = 21,056,918.88/5,101.11
  6. Step 6: Final answer
    x = 4,127.91

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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.