Home / 6,388.20-9,591.76-3,933.32

Finding the Fourth Proportional to 6,388.20, 9,591.76 and 3,933.32

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Solution

The fourth proportional to 6,388.20, 9,591.76 and 3,933.32 is: 5,905.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,388.20 : 9,591.76 = 3,933.32 : x
  2. Step 2: Convert to fraction form
    6,388.20/9,591.76 = 3,933.32/x
  3. Step 3: Cross multiply
    6,388.20x = 9,591.76 × 3,933.32
  4. Step 4: Simplify right side
    6,388.20x = 37,727,461.44
  5. Step 5: Solve for x
    x = 37,727,461.44/6,388.20
  6. Step 6: Final answer
    x = 5,905.80

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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.