Home / 9,321.40-13,982.82-2,747.44

Finding the Fourth Proportional to 9,321.40, 13,982.82 and 2,747.44

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Solution

The fourth proportional to 9,321.40, 13,982.82 and 2,747.44 is: 4,121.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,321.40 : 13,982.82 = 2,747.44 : x
  2. Step 2: Convert to fraction form
    9,321.40/13,982.82 = 2,747.44/x
  3. Step 3: Cross multiply
    9,321.40x = 13,982.82 × 2,747.44
  4. Step 4: Simplify right side
    9,321.40x = 38,416,958.98
  5. Step 5: Solve for x
    x = 38,416,958.98/9,321.40
  6. Step 6: Final answer
    x = 4,121.37

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Why These Related Problems?

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