Home / 3,943.62-5,911.77-3,127.14

Finding the Fourth Proportional to 3,943.62, 5,911.77 and 3,127.14

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Solution

The fourth proportional to 3,943.62, 5,911.77 and 3,127.14 is: 4,687.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.62 : 5,911.77 = 3,127.14 : x
  2. Step 2: Convert to fraction form
    3,943.62/5,911.77 = 3,127.14/x
  3. Step 3: Cross multiply
    3,943.62x = 5,911.77 × 3,127.14
  4. Step 4: Simplify right side
    3,943.62x = 18,486,932.44
  5. Step 5: Solve for x
    x = 18,486,932.44/3,943.62
  6. Step 6: Final answer
    x = 4,687.81

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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.