Home / 3,198.78-4,414.14-1,801.44

Finding the Fourth Proportional to 3,198.78, 4,414.14 and 1,801.44

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Solution

The fourth proportional to 3,198.78, 4,414.14 and 1,801.44 is: 2,485.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.78 : 4,414.14 = 1,801.44 : x
  2. Step 2: Convert to fraction form
    3,198.78/4,414.14 = 1,801.44/x
  3. Step 3: Cross multiply
    3,198.78x = 4,414.14 × 1,801.44
  4. Step 4: Simplify right side
    3,198.78x = 7,951,808.36
  5. Step 5: Solve for x
    x = 7,951,808.36/3,198.78
  6. Step 6: Final answer
    x = 2,485.89

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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.