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Finding the Fourth Proportional to 5,517.81, 7,614.62 and 2,999.93

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Solution

The fourth proportional to 5,517.81, 7,614.62 and 2,999.93 is: 4,139.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,517.81 : 7,614.62 = 2,999.93 : x
  2. Step 2: Convert to fraction form
    5,517.81/7,614.62 = 2,999.93/x
  3. Step 3: Cross multiply
    5,517.81x = 7,614.62 × 2,999.93
  4. Step 4: Simplify right side
    5,517.81x = 22,843,296.40
  5. Step 5: Solve for x
    x = 22,843,296.40/5,517.81
  6. Step 6: Final answer
    x = 4,139.92

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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.