Home / 3,781.14-5,669.49-1,147.85

Finding the Fourth Proportional to 3,781.14, 5,669.49 and 1,147.85

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Solution

The fourth proportional to 3,781.14, 5,669.49 and 1,147.85 is: 1,721.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.14 : 5,669.49 = 1,147.85 : x
  2. Step 2: Convert to fraction form
    3,781.14/5,669.49 = 1,147.85/x
  3. Step 3: Cross multiply
    3,781.14x = 5,669.49 × 1,147.85
  4. Step 4: Simplify right side
    3,781.14x = 6,507,724.10
  5. Step 5: Solve for x
    x = 6,507,724.10/3,781.14
  6. Step 6: Final answer
    x = 1,721.10

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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.