Home / 3,205.80-4,805.60-1,229.92

Finding the Fourth Proportional to 3,205.80, 4,805.60 and 1,229.92

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Solution

The fourth proportional to 3,205.80, 4,805.60 and 1,229.92 is: 1,843.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.80 : 4,805.60 = 1,229.92 : x
  2. Step 2: Convert to fraction form
    3,205.80/4,805.60 = 1,229.92/x
  3. Step 3: Cross multiply
    3,205.80x = 4,805.60 × 1,229.92
  4. Step 4: Simplify right side
    3,205.80x = 5,910,485.39
  5. Step 5: Solve for x
    x = 5,910,485.39/3,205.80
  6. Step 6: Final answer
    x = 1,843.69

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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.