Home / 5,198.55-7,167.42-3,781.14

Finding the Fourth Proportional to 5,198.55, 7,167.42 and 3,781.14

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Solution

The fourth proportional to 5,198.55, 7,167.42 and 3,781.14 is: 5,213.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.55 : 7,167.42 = 3,781.14 : x
  2. Step 2: Convert to fraction form
    5,198.55/7,167.42 = 3,781.14/x
  3. Step 3: Cross multiply
    5,198.55x = 7,167.42 × 3,781.14
  4. Step 4: Simplify right side
    5,198.55x = 27,101,018.46
  5. Step 5: Solve for x
    x = 27,101,018.46/5,198.55
  6. Step 6: Final answer
    x = 5,213.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.