Home / 6,115.28-9,174.82-2,219.72

Finding the Fourth Proportional to 6,115.28, 9,174.82 and 2,219.72

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Solution

The fourth proportional to 6,115.28, 9,174.82 and 2,219.72 is: 3,330.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.28 : 9,174.82 = 2,219.72 : x
  2. Step 2: Convert to fraction form
    6,115.28/9,174.82 = 2,219.72/x
  3. Step 3: Cross multiply
    6,115.28x = 9,174.82 × 2,219.72
  4. Step 4: Simplify right side
    6,115.28x = 20,365,531.45
  5. Step 5: Solve for x
    x = 20,365,531.45/6,115.28
  6. Step 6: Final answer
    x = 3,330.27

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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.