Home / 5,140.22-7,711.66-2,217.82

Finding the Fourth Proportional to 5,140.22, 7,711.66 and 2,217.82

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Solution

The fourth proportional to 5,140.22, 7,711.66 and 2,217.82 is: 3,327.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.22 : 7,711.66 = 2,217.82 : x
  2. Step 2: Convert to fraction form
    5,140.22/7,711.66 = 2,217.82/x
  3. Step 3: Cross multiply
    5,140.22x = 7,711.66 × 2,217.82
  4. Step 4: Simplify right side
    5,140.22x = 17,103,073.78
  5. Step 5: Solve for x
    x = 17,103,073.78/5,140.22
  6. Step 6: Final answer
    x = 3,327.30

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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.