Home / 6,436.20-9,655.38-3,148.86

Finding the Fourth Proportional to 6,436.20, 9,655.38 and 3,148.86

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Solution

The fourth proportional to 6,436.20, 9,655.38 and 3,148.86 is: 4,723.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,436.20 : 9,655.38 = 3,148.86 : x
  2. Step 2: Convert to fraction form
    6,436.20/9,655.38 = 3,148.86/x
  3. Step 3: Cross multiply
    6,436.20x = 9,655.38 × 3,148.86
  4. Step 4: Simplify right side
    6,436.20x = 30,403,439.87
  5. Step 5: Solve for x
    x = 30,403,439.87/6,436.20
  6. Step 6: Final answer
    x = 4,723.82

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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.