Home / 4,229.20-6,343.80-4,156.30

Finding the Fourth Proportional to 4,229.20, 6,343.80 and 4,156.30

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Solution

The fourth proportional to 4,229.20, 6,343.80 and 4,156.30 is: 6,234.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,229.20 : 6,343.80 = 4,156.30 : x
  2. Step 2: Convert to fraction form
    4,229.20/6,343.80 = 4,156.30/x
  3. Step 3: Cross multiply
    4,229.20x = 6,343.80 × 4,156.30
  4. Step 4: Simplify right side
    4,229.20x = 26,366,735.94
  5. Step 5: Solve for x
    x = 26,366,735.94/4,229.20
  6. Step 6: Final answer
    x = 6,234.45

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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.