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Finding the Fourth Proportional to 2,640.41, 3,660.43 and 2,499.97

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Solution

The fourth proportional to 2,640.41, 3,660.43 and 2,499.97 is: 3,465.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640.41 : 3,660.43 = 2,499.97 : x
  2. Step 2: Convert to fraction form
    2,640.41/3,660.43 = 2,499.97/x
  3. Step 3: Cross multiply
    2,640.41x = 3,660.43 × 2,499.97
  4. Step 4: Simplify right side
    2,640.41x = 9,150,965.19
  5. Step 5: Solve for x
    x = 9,150,965.19/2,640.41
  6. Step 6: Final answer
    x = 3,465.74

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.