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Finding the Fourth Proportional to 7,754.56, 11,631.88 and 2,208.56

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Solution

The fourth proportional to 7,754.56, 11,631.88 and 2,208.56 is: 3,312.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,754.56 : 11,631.88 = 2,208.56 : x
  2. Step 2: Convert to fraction form
    7,754.56/11,631.88 = 2,208.56/x
  3. Step 3: Cross multiply
    7,754.56x = 11,631.88 × 2,208.56
  4. Step 4: Simplify right side
    7,754.56x = 25,689,704.89
  5. Step 5: Solve for x
    x = 25,689,704.89/7,754.56
  6. Step 6: Final answer
    x = 3,312.85

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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.