Home / 6,432.55-8,877.95-3,780.61

Finding the Fourth Proportional to 6,432.55, 8,877.95 and 3,780.61

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Solution

The fourth proportional to 6,432.55, 8,877.95 and 3,780.61 is: 5,217.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,432.55 : 8,877.95 = 3,780.61 : x
  2. Step 2: Convert to fraction form
    6,432.55/8,877.95 = 3,780.61/x
  3. Step 3: Cross multiply
    6,432.55x = 8,877.95 × 3,780.61
  4. Step 4: Simplify right side
    6,432.55x = 33,564,066.55
  5. Step 5: Solve for x
    x = 33,564,066.55/6,432.55
  6. Step 6: Final answer
    x = 5,217.85

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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.