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Finding the Fourth Proportional to 2,186.24, 3,281.02 and 800.88

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Solution

The fourth proportional to 2,186.24, 3,281.02 and 800.88 is: 1,201.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.24 : 3,281.02 = 800.88 : x
  2. Step 2: Convert to fraction form
    2,186.24/3,281.02 = 800.88/x
  3. Step 3: Cross multiply
    2,186.24x = 3,281.02 × 800.88
  4. Step 4: Simplify right side
    2,186.24x = 2,627,701.30
  5. Step 5: Solve for x
    x = 2,627,701.30/2,186.24
  6. Step 6: Final answer
    x = 1,201.93

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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.