Home / 2,680.66-3,691.27-2,237.80

Finding the Fourth Proportional to 2,680.66, 3,691.27 and 2,237.80

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Solution

The fourth proportional to 2,680.66, 3,691.27 and 2,237.80 is: 3,081.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.66 : 3,691.27 = 2,237.80 : x
  2. Step 2: Convert to fraction form
    2,680.66/3,691.27 = 2,237.80/x
  3. Step 3: Cross multiply
    2,680.66x = 3,691.27 × 2,237.80
  4. Step 4: Simplify right side
    2,680.66x = 8,260,324.01
  5. Step 5: Solve for x
    x = 8,260,324.01/2,680.66
  6. Step 6: Final answer
    x = 3,081.45

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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.