Home / 7,131.20-10,697.22-2,748.66

Finding the Fourth Proportional to 7,131.20, 10,697.22 and 2,748.66

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Solution

The fourth proportional to 7,131.20, 10,697.22 and 2,748.66 is: 4,123.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.20 : 10,697.22 = 2,748.66 : x
  2. Step 2: Convert to fraction form
    7,131.20/10,697.22 = 2,748.66/x
  3. Step 3: Cross multiply
    7,131.20x = 10,697.22 × 2,748.66
  4. Step 4: Simplify right side
    7,131.20x = 29,403,020.73
  5. Step 5: Solve for x
    x = 29,403,020.73/7,131.20
  6. Step 6: Final answer
    x = 4,123.15

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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.