Home / 3,138.28-4,324.62-2,251.24

Finding the Fourth Proportional to 3,138.28, 4,324.62 and 2,251.24

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Solution

The fourth proportional to 3,138.28, 4,324.62 and 2,251.24 is: 3,102.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.28 : 4,324.62 = 2,251.24 : x
  2. Step 2: Convert to fraction form
    3,138.28/4,324.62 = 2,251.24/x
  3. Step 3: Cross multiply
    3,138.28x = 4,324.62 × 2,251.24
  4. Step 4: Simplify right side
    3,138.28x = 9,735,757.53
  5. Step 5: Solve for x
    x = 9,735,757.53/3,138.28
  6. Step 6: Final answer
    x = 3,102.26

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1.5x scale

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.