Home / 3,872.46-5,809.80-1,531.02

Finding the Fourth Proportional to 3,872.46, 5,809.80 and 1,531.02

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Solution

The fourth proportional to 3,872.46, 5,809.80 and 1,531.02 is: 2,296.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.46 : 5,809.80 = 1,531.02 : x
  2. Step 2: Convert to fraction form
    3,872.46/5,809.80 = 1,531.02/x
  3. Step 3: Cross multiply
    3,872.46x = 5,809.80 × 1,531.02
  4. Step 4: Simplify right side
    3,872.46x = 8,894,920.00
  5. Step 5: Solve for x
    x = 8,894,920.00/3,872.46
  6. Step 6: Final answer
    x = 2,296.97

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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.