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Finding the Fourth Proportional to 7,174.26, 9,900.72 and 4,031.46

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Solution

The fourth proportional to 7,174.26, 9,900.72 and 4,031.46 is: 5,563.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,174.26 : 9,900.72 = 4,031.46 : x
  2. Step 2: Convert to fraction form
    7,174.26/9,900.72 = 4,031.46/x
  3. Step 3: Cross multiply
    7,174.26x = 9,900.72 × 4,031.46
  4. Step 4: Simplify right side
    7,174.26x = 39,914,356.65
  5. Step 5: Solve for x
    x = 39,914,356.65/7,174.26
  6. Step 6: Final answer
    x = 5,563.55

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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.