Home / 3,209.11-4,428.88-1,949.87

Finding the Fourth Proportional to 3,209.11, 4,428.88 and 1,949.87

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Solution

The fourth proportional to 3,209.11, 4,428.88 and 1,949.87 is: 2,691.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.11 : 4,428.88 = 1,949.87 : x
  2. Step 2: Convert to fraction form
    3,209.11/4,428.88 = 1,949.87/x
  3. Step 3: Cross multiply
    3,209.11x = 4,428.88 × 1,949.87
  4. Step 4: Simplify right side
    3,209.11x = 8,635,746.44
  5. Step 5: Solve for x
    x = 8,635,746.44/3,209.11
  6. Step 6: Final answer
    x = 2,691.01

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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.