Home / 3,198.80-4,414.34-1,801.56

Finding the Fourth Proportional to 3,198.80, 4,414.34 and 1,801.56

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Solution

The fourth proportional to 3,198.80, 4,414.34 and 1,801.56 is: 2,486.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.80 : 4,414.34 = 1,801.56 : x
  2. Step 2: Convert to fraction form
    3,198.80/4,414.34 = 1,801.56/x
  3. Step 3: Cross multiply
    3,198.80x = 4,414.34 × 1,801.56
  4. Step 4: Simplify right side
    3,198.80x = 7,952,698.37
  5. Step 5: Solve for x
    x = 7,952,698.37/3,198.80
  6. Step 6: Final answer
    x = 2,486.15

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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.