Home / 2,811.25-3,876.61-2,414.22

Finding the Fourth Proportional to 2,811.25, 3,876.61 and 2,414.22

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Solution

The fourth proportional to 2,811.25, 3,876.61 and 2,414.22 is: 3,329.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.25 : 3,876.61 = 2,414.22 : x
  2. Step 2: Convert to fraction form
    2,811.25/3,876.61 = 2,414.22/x
  3. Step 3: Cross multiply
    2,811.25x = 3,876.61 × 2,414.22
  4. Step 4: Simplify right side
    2,811.25x = 9,358,988.40
  5. Step 5: Solve for x
    x = 9,358,988.40/2,811.25
  6. Step 6: Final answer
    x = 3,329.13

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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.