Home / 3,198.97-4,786.57-2,807.13

Finding the Fourth Proportional to 3,198.97, 4,786.57 and 2,807.13

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Solution

The fourth proportional to 3,198.97, 4,786.57 and 2,807.13 is: 4,200.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.97 : 4,786.57 = 2,807.13 : x
  2. Step 2: Convert to fraction form
    3,198.97/4,786.57 = 2,807.13/x
  3. Step 3: Cross multiply
    3,198.97x = 4,786.57 × 2,807.13
  4. Step 4: Simplify right side
    3,198.97x = 13,436,524.24
  5. Step 5: Solve for x
    x = 13,436,524.24/3,198.97
  6. Step 6: Final answer
    x = 4,200.27

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1.5x scale

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.