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Finding the Fourth Proportional to 7,456.70, 11,188.09 and 3,760

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Solution

The fourth proportional to 7,456.70, 11,188.09 and 3,760 is: 5,641.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,456.70 : 11,188.09 = 3,760 : x
  2. Step 2: Convert to fraction form
    7,456.70/11,188.09 = 3,760/x
  3. Step 3: Cross multiply
    7,456.70x = 11,188.09 × 3,760
  4. Step 4: Simplify right side
    7,456.70x = 42,067,218.40
  5. Step 5: Solve for x
    x = 42,067,218.40/7,456.70
  6. Step 6: Final answer
    x = 5,641.53

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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.