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Finding the Fourth Proportional to 3,253.75, 4,490.19 and 1,761.68

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Solution

The fourth proportional to 3,253.75, 4,490.19 and 1,761.68 is: 2,431.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,253.75 : 4,490.19 = 1,761.68 : x
  2. Step 2: Convert to fraction form
    3,253.75/4,490.19 = 1,761.68/x
  3. Step 3: Cross multiply
    3,253.75x = 4,490.19 × 1,761.68
  4. Step 4: Simplify right side
    3,253.75x = 7,910,277.92
  5. Step 5: Solve for x
    x = 7,910,277.92/3,253.75
  6. Step 6: Final answer
    x = 2,431.13

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1.5x scale

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.