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Finding the Fourth Proportional to 2,650.64, 3,976.11 and 895.49

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Solution

The fourth proportional to 2,650.64, 3,976.11 and 895.49 is: 1,343.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,650.64 : 3,976.11 = 895.49 : x
  2. Step 2: Convert to fraction form
    2,650.64/3,976.11 = 895.49/x
  3. Step 3: Cross multiply
    2,650.64x = 3,976.11 × 895.49
  4. Step 4: Simplify right side
    2,650.64x = 3,560,546.86
  5. Step 5: Solve for x
    x = 3,560,546.86/2,650.64
  6. Step 6: Final answer
    x = 1,343.28

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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.