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Finding the Fourth Proportional to 7,245.88, 10,868.46 and 3,965.38

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Solution

The fourth proportional to 7,245.88, 10,868.46 and 3,965.38 is: 5,947.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,245.88 : 10,868.46 = 3,965.38 : x
  2. Step 2: Convert to fraction form
    7,245.88/10,868.46 = 3,965.38/x
  3. Step 3: Cross multiply
    7,245.88x = 10,868.46 × 3,965.38
  4. Step 4: Simplify right side
    7,245.88x = 43,097,573.91
  5. Step 5: Solve for x
    x = 43,097,573.91/7,245.88
  6. Step 6: Final answer
    x = 5,947.87

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.