Home / 3,198.75-4,414.32-1,956.75

Finding the Fourth Proportional to 3,198.75, 4,414.32 and 1,956.75

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Solution

The fourth proportional to 3,198.75, 4,414.32 and 1,956.75 is: 2,700.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.75 : 4,414.32 = 1,956.75 : x
  2. Step 2: Convert to fraction form
    3,198.75/4,414.32 = 1,956.75/x
  3. Step 3: Cross multiply
    3,198.75x = 4,414.32 × 1,956.75
  4. Step 4: Simplify right side
    3,198.75x = 8,637,720.66
  5. Step 5: Solve for x
    x = 8,637,720.66/3,198.75
  6. Step 6: Final answer
    x = 2,700.34

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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.