Home / 4,254.20-6,381.30-4,229.90

Finding the Fourth Proportional to 4,254.20, 6,381.30 and 4,229.90

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Solution

The fourth proportional to 4,254.20, 6,381.30 and 4,229.90 is: 6,344.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,254.20 : 6,381.30 = 4,229.90 : x
  2. Step 2: Convert to fraction form
    4,254.20/6,381.30 = 4,229.90/x
  3. Step 3: Cross multiply
    4,254.20x = 6,381.30 × 4,229.90
  4. Step 4: Simplify right side
    4,254.20x = 26,992,260.87
  5. Step 5: Solve for x
    x = 26,992,260.87/4,254.20
  6. Step 6: Final answer
    x = 6,344.85

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1.5x scale

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.