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Finding the Fourth Proportional to 3,227, 4,453.26 and 1,755

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Solution

The fourth proportional to 3,227, 4,453.26 and 1,755 is: 2,421.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,227 : 4,453.26 = 1,755 : x
  2. Step 2: Convert to fraction form
    3,227/4,453.26 = 1,755/x
  3. Step 3: Cross multiply
    3,227x = 4,453.26 × 1,755
  4. Step 4: Simplify right side
    3,227x = 7,815,471.30
  5. Step 5: Solve for x
    x = 7,815,471.30/3,227
  6. Step 6: Final answer
    x = 2,421.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.