Home / 4,311.53-6,463.19-1,387.79

Finding the Fourth Proportional to 4,311.53, 6,463.19 and 1,387.79

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Solution

The fourth proportional to 4,311.53, 6,463.19 and 1,387.79 is: 2,080.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311.53 : 6,463.19 = 1,387.79 : x
  2. Step 2: Convert to fraction form
    4,311.53/6,463.19 = 1,387.79/x
  3. Step 3: Cross multiply
    4,311.53x = 6,463.19 × 1,387.79
  4. Step 4: Simplify right side
    4,311.53x = 8,969,511.20
  5. Step 5: Solve for x
    x = 8,969,511.20/4,311.53
  6. Step 6: Final answer
    x = 2,080.36

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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.