Home / 2,581.28-3,562.08-1,532.72

Finding the Fourth Proportional to 2,581.28, 3,562.08 and 1,532.72

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Solution

The fourth proportional to 2,581.28, 3,562.08 and 1,532.72 is: 2,115.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,581.28 : 3,562.08 = 1,532.72 : x
  2. Step 2: Convert to fraction form
    2,581.28/3,562.08 = 1,532.72/x
  3. Step 3: Cross multiply
    2,581.28x = 3,562.08 × 1,532.72
  4. Step 4: Simplify right side
    2,581.28x = 5,459,671.26
  5. Step 5: Solve for x
    x = 5,459,671.26/2,581.28
  6. Step 6: Final answer
    x = 2,115.10

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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.