Home / 3,720.38-5,581.14-1,255.01

Finding the Fourth Proportional to 3,720.38, 5,581.14 and 1,255.01

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Solution

The fourth proportional to 3,720.38, 5,581.14 and 1,255.01 is: 1,882.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.38 : 5,581.14 = 1,255.01 : x
  2. Step 2: Convert to fraction form
    3,720.38/5,581.14 = 1,255.01/x
  3. Step 3: Cross multiply
    3,720.38x = 5,581.14 × 1,255.01
  4. Step 4: Simplify right side
    3,720.38x = 7,004,358.61
  5. Step 5: Solve for x
    x = 7,004,358.61/3,720.38
  6. Step 6: Final answer
    x = 1,882.70

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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.