Home / 3,198.09-4,415.55-2,003.55

Finding the Fourth Proportional to 3,198.09, 4,415.55 and 2,003.55

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Solution

The fourth proportional to 3,198.09, 4,415.55 and 2,003.55 is: 2,766.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.09 : 4,415.55 = 2,003.55 : x
  2. Step 2: Convert to fraction form
    3,198.09/4,415.55 = 2,003.55/x
  3. Step 3: Cross multiply
    3,198.09x = 4,415.55 × 2,003.55
  4. Step 4: Simplify right side
    3,198.09x = 8,846,775.20
  5. Step 5: Solve for x
    x = 8,846,775.20/3,198.09
  6. Step 6: Final answer
    x = 2,766.27

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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.