Home / 3,198.88-4,414.38-1,782.56

Finding the Fourth Proportional to 3,198.88, 4,414.38 and 1,782.56

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Solution

The fourth proportional to 3,198.88, 4,414.38 and 1,782.56 is: 2,459.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.88 : 4,414.38 = 1,782.56 : x
  2. Step 2: Convert to fraction form
    3,198.88/4,414.38 = 1,782.56/x
  3. Step 3: Cross multiply
    3,198.88x = 4,414.38 × 1,782.56
  4. Step 4: Simplify right side
    3,198.88x = 7,868,901.56
  5. Step 5: Solve for x
    x = 7,868,901.56/3,198.88
  6. Step 6: Final answer
    x = 2,459.89

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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.