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Finding the Fourth Proportional to 2,250.76, 3,376.68 and 864.11

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Solution

The fourth proportional to 2,250.76, 3,376.68 and 864.11 is: 1,296.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,250.76 : 3,376.68 = 864.11 : x
  2. Step 2: Convert to fraction form
    2,250.76/3,376.68 = 864.11/x
  3. Step 3: Cross multiply
    2,250.76x = 3,376.68 × 864.11
  4. Step 4: Simplify right side
    2,250.76x = 2,917,801.75
  5. Step 5: Solve for x
    x = 2,917,801.75/2,250.76
  6. Step 6: Final answer
    x = 1,296.37

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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.