Home / 3,641.28-5,469.28-2,183.20

Finding the Fourth Proportional to 3,641.28, 5,469.28 and 2,183.20

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Solution

The fourth proportional to 3,641.28, 5,469.28 and 2,183.20 is: 3,279.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,641.28 : 5,469.28 = 2,183.20 : x
  2. Step 2: Convert to fraction form
    3,641.28/5,469.28 = 2,183.20/x
  3. Step 3: Cross multiply
    3,641.28x = 5,469.28 × 2,183.20
  4. Step 4: Simplify right side
    3,641.28x = 11,940,532.10
  5. Step 5: Solve for x
    x = 11,940,532.10/3,641.28
  6. Step 6: Final answer
    x = 3,279.21

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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.