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Finding the Fourth Proportional to 3,198.02, 4,408.97 and 2,869.97

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Solution

The fourth proportional to 3,198.02, 4,408.97 and 2,869.97 is: 3,956.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.02 : 4,408.97 = 2,869.97 : x
  2. Step 2: Convert to fraction form
    3,198.02/4,408.97 = 2,869.97/x
  3. Step 3: Cross multiply
    3,198.02x = 4,408.97 × 2,869.97
  4. Step 4: Simplify right side
    3,198.02x = 12,653,575.24
  5. Step 5: Solve for x
    x = 12,653,575.24/3,198.02
  6. Step 6: Final answer
    x = 3,956.70

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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.