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Finding the Fourth Proportional to 7,202.88, 9,939.92 and 4,016.15

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Solution

The fourth proportional to 7,202.88, 9,939.92 and 4,016.15 is: 5,542.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,202.88 : 9,939.92 = 4,016.15 : x
  2. Step 2: Convert to fraction form
    7,202.88/9,939.92 = 4,016.15/x
  3. Step 3: Cross multiply
    7,202.88x = 9,939.92 × 4,016.15
  4. Step 4: Simplify right side
    7,202.88x = 39,920,139.93
  5. Step 5: Solve for x
    x = 39,920,139.93/7,202.88
  6. Step 6: Final answer
    x = 5,542.25

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.