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Finding the Fourth Proportional to 7,552.72, 11,329 and 3,170

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Solution

The fourth proportional to 7,552.72, 11,329 and 3,170 is: 4,754.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,552.72 : 11,329 = 3,170 : x
  2. Step 2: Convert to fraction form
    7,552.72/11,329 = 3,170/x
  3. Step 3: Cross multiply
    7,552.72x = 11,329 × 3,170
  4. Step 4: Simplify right side
    7,552.72x = 35,912,930
  5. Step 5: Solve for x
    x = 35,912,930/7,552.72
  6. Step 6: Final answer
    x = 4,754.97

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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.