Home / 7,754.12-11,631.28-2,207.60

Finding the Fourth Proportional to 7,754.12, 11,631.28 and 2,207.60

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Solution

The fourth proportional to 7,754.12, 11,631.28 and 2,207.60 is: 3,311.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,754.12 : 11,631.28 = 2,207.60 : x
  2. Step 2: Convert to fraction form
    7,754.12/11,631.28 = 2,207.60/x
  3. Step 3: Cross multiply
    7,754.12x = 11,631.28 × 2,207.60
  4. Step 4: Simplify right side
    7,754.12x = 25,677,213.73
  5. Step 5: Solve for x
    x = 25,677,213.73/7,754.12
  6. Step 6: Final answer
    x = 3,311.43

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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.