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Finding the Fourth Proportional to 7,211.16, 9,951.30 and 4,068.36

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Solution

The fourth proportional to 7,211.16, 9,951.30 and 4,068.36 is: 5,614.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211.16 : 9,951.30 = 4,068.36 : x
  2. Step 2: Convert to fraction form
    7,211.16/9,951.30 = 4,068.36/x
  3. Step 3: Cross multiply
    7,211.16x = 9,951.30 × 4,068.36
  4. Step 4: Simplify right side
    7,211.16x = 40,485,470.87
  5. Step 5: Solve for x
    x = 40,485,470.87/7,211.16
  6. Step 6: Final answer
    x = 5,614.28

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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.