Home / 3,581.28-5,371.11-1,114.74

Finding the Fourth Proportional to 3,581.28, 5,371.11 and 1,114.74

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Solution

The fourth proportional to 3,581.28, 5,371.11 and 1,114.74 is: 1,671.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.28 : 5,371.11 = 1,114.74 : x
  2. Step 2: Convert to fraction form
    3,581.28/5,371.11 = 1,114.74/x
  3. Step 3: Cross multiply
    3,581.28x = 5,371.11 × 1,114.74
  4. Step 4: Simplify right side
    3,581.28x = 5,987,391.16
  5. Step 5: Solve for x
    x = 5,987,391.16/3,581.28
  6. Step 6: Final answer
    x = 1,671.86

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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.