Home / 3,118.68-4,673.97-2,721.39

Finding the Fourth Proportional to 3,118.68, 4,673.97 and 2,721.39

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Solution

The fourth proportional to 3,118.68, 4,673.97 and 2,721.39 is: 4,078.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.68 : 4,673.97 = 2,721.39 : x
  2. Step 2: Convert to fraction form
    3,118.68/4,673.97 = 2,721.39/x
  3. Step 3: Cross multiply
    3,118.68x = 4,673.97 × 2,721.39
  4. Step 4: Simplify right side
    3,118.68x = 12,719,695.22
  5. Step 5: Solve for x
    x = 12,719,695.22/3,118.68
  6. Step 6: Final answer
    x = 4,078.55

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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.