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Finding the Fourth Proportional to 6,432.62, 8,875.98 and 3,913.92

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Solution

The fourth proportional to 6,432.62, 8,875.98 and 3,913.92 is: 5,400.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,432.62 : 8,875.98 = 3,913.92 : x
  2. Step 2: Convert to fraction form
    6,432.62/8,875.98 = 3,913.92/x
  3. Step 3: Cross multiply
    6,432.62x = 8,875.98 × 3,913.92
  4. Step 4: Simplify right side
    6,432.62x = 34,739,875.64
  5. Step 5: Solve for x
    x = 34,739,875.64/6,432.62
  6. Step 6: Final answer
    x = 5,400.58

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1.5x scale

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.