Home / 2,872.13-4,301.24-1,635.78

Finding the Fourth Proportional to 2,872.13, 4,301.24 and 1,635.78

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Solution

The fourth proportional to 2,872.13, 4,301.24 and 1,635.78 is: 2,449.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.13 : 4,301.24 = 1,635.78 : x
  2. Step 2: Convert to fraction form
    2,872.13/4,301.24 = 1,635.78/x
  3. Step 3: Cross multiply
    2,872.13x = 4,301.24 × 1,635.78
  4. Step 4: Simplify right side
    2,872.13x = 7,035,874.19
  5. Step 5: Solve for x
    x = 7,035,874.19/2,872.13
  6. Step 6: Final answer
    x = 2,449.71

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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.