Home / 3,201.92-4,801.80-1,640.24

Finding the Fourth Proportional to 3,201.92, 4,801.80 and 1,640.24

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Solution

The fourth proportional to 3,201.92, 4,801.80 and 1,640.24 is: 2,459.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,201.92 : 4,801.80 = 1,640.24 : x
  2. Step 2: Convert to fraction form
    3,201.92/4,801.80 = 1,640.24/x
  3. Step 3: Cross multiply
    3,201.92x = 4,801.80 × 1,640.24
  4. Step 4: Simplify right side
    3,201.92x = 7,876,104.43
  5. Step 5: Solve for x
    x = 7,876,104.43/3,201.92
  6. Step 6: Final answer
    x = 2,459.81

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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.