Home / 3,253.78-4,490.22-1,761.70

Finding the Fourth Proportional to 3,253.78, 4,490.22 and 1,761.70

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Solution

The fourth proportional to 3,253.78, 4,490.22 and 1,761.70 is: 2,431.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,253.78 : 4,490.22 = 1,761.70 : x
  2. Step 2: Convert to fraction form
    3,253.78/4,490.22 = 1,761.70/x
  3. Step 3: Cross multiply
    3,253.78x = 4,490.22 × 1,761.70
  4. Step 4: Simplify right side
    3,253.78x = 7,910,420.57
  5. Step 5: Solve for x
    x = 7,910,420.57/3,253.78
  6. Step 6: Final answer
    x = 2,431.15

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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.