Home / 3,431.17-5,143.68-2,198.94

Finding the Fourth Proportional to 3,431.17, 5,143.68 and 2,198.94

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Solution

The fourth proportional to 3,431.17, 5,143.68 and 2,198.94 is: 3,296.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.17 : 5,143.68 = 2,198.94 : x
  2. Step 2: Convert to fraction form
    3,431.17/5,143.68 = 2,198.94/x
  3. Step 3: Cross multiply
    3,431.17x = 5,143.68 × 2,198.94
  4. Step 4: Simplify right side
    3,431.17x = 11,310,643.70
  5. Step 5: Solve for x
    x = 11,310,643.70/3,431.17
  6. Step 6: Final answer
    x = 3,296.44

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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.