Home / 4,229.25-6,343.80-1,455.90

Finding the Fourth Proportional to 4,229.25, 6,343.80 and 1,455.90

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Solution

The fourth proportional to 4,229.25, 6,343.80 and 1,455.90 is: 2,183.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,229.25 : 6,343.80 = 1,455.90 : x
  2. Step 2: Convert to fraction form
    4,229.25/6,343.80 = 1,455.90/x
  3. Step 3: Cross multiply
    4,229.25x = 6,343.80 × 1,455.90
  4. Step 4: Simplify right side
    4,229.25x = 9,235,938.42
  5. Step 5: Solve for x
    x = 9,235,938.42/4,229.25
  6. Step 6: Final answer
    x = 2,183.82

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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.