Home / 3,996.91-5,516.85-3,201.49

Finding the Fourth Proportional to 3,996.91, 5,516.85 and 3,201.49

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Solution

The fourth proportional to 3,996.91, 5,516.85 and 3,201.49 is: 4,418.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,996.91 : 5,516.85 = 3,201.49 : x
  2. Step 2: Convert to fraction form
    3,996.91/5,516.85 = 3,201.49/x
  3. Step 3: Cross multiply
    3,996.91x = 5,516.85 × 3,201.49
  4. Step 4: Simplify right side
    3,996.91x = 17,662,140.11
  5. Step 5: Solve for x
    x = 17,662,140.11/3,996.91
  6. Step 6: Final answer
    x = 4,418.95

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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.