Home / 2,198.90-3,034.41-1,254.75

Finding the Fourth Proportional to 2,198.90, 3,034.41 and 1,254.75

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Solution

The fourth proportional to 2,198.90, 3,034.41 and 1,254.75 is: 1,731.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.90 : 3,034.41 = 1,254.75 : x
  2. Step 2: Convert to fraction form
    2,198.90/3,034.41 = 1,254.75/x
  3. Step 3: Cross multiply
    2,198.90x = 3,034.41 × 1,254.75
  4. Step 4: Simplify right side
    2,198.90x = 3,807,416.92
  5. Step 5: Solve for x
    x = 3,807,416.92/2,198.90
  6. Step 6: Final answer
    x = 1,731.51

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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.