Home / 6,432-8,876.16-3,638.04

Finding the Fourth Proportional to 6,432, 8,876.16 and 3,638.04

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Solution

The fourth proportional to 6,432, 8,876.16 and 3,638.04 is: 5,020.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,432 : 8,876.16 = 3,638.04 : x
  2. Step 2: Convert to fraction form
    6,432/8,876.16 = 3,638.04/x
  3. Step 3: Cross multiply
    6,432x = 8,876.16 × 3,638.04
  4. Step 4: Simplify right side
    6,432x = 32,291,825.13
  5. Step 5: Solve for x
    x = 32,291,825.13/6,432
  6. Step 6: Final answer
    x = 5,020.50

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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.