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Finding the Fourth Proportional to 5,716.11, 7,888.18 and 3,198.43

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Solution

The fourth proportional to 5,716.11, 7,888.18 and 3,198.43 is: 4,413.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,716.11 : 7,888.18 = 3,198.43 : x
  2. Step 2: Convert to fraction form
    5,716.11/7,888.18 = 3,198.43/x
  3. Step 3: Cross multiply
    5,716.11x = 7,888.18 × 3,198.43
  4. Step 4: Simplify right side
    5,716.11x = 25,229,791.56
  5. Step 5: Solve for x
    x = 25,229,791.56/5,716.11
  6. Step 6: Final answer
    x = 4,413.80

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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.