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Finding the Fourth Proportional to 2,204.77, 3,307.88 and 818.23

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Solution

The fourth proportional to 2,204.77, 3,307.88 and 818.23 is: 1,227.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,204.77 : 3,307.88 = 818.23 : x
  2. Step 2: Convert to fraction form
    2,204.77/3,307.88 = 818.23/x
  3. Step 3: Cross multiply
    2,204.77x = 3,307.88 × 818.23
  4. Step 4: Simplify right side
    2,204.77x = 2,706,591.57
  5. Step 5: Solve for x
    x = 2,706,591.57/2,204.77
  6. Step 6: Final answer
    x = 1,227.61

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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.