Home / 3,677.66-5,517.30-1,212.72

Finding the Fourth Proportional to 3,677.66, 5,517.30 and 1,212.72

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Solution

The fourth proportional to 3,677.66, 5,517.30 and 1,212.72 is: 1,819.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,677.66 : 5,517.30 = 1,212.72 : x
  2. Step 2: Convert to fraction form
    3,677.66/5,517.30 = 1,212.72/x
  3. Step 3: Cross multiply
    3,677.66x = 5,517.30 × 1,212.72
  4. Step 4: Simplify right side
    3,677.66x = 6,690,940.06
  5. Step 5: Solve for x
    x = 6,690,940.06/3,677.66
  6. Step 6: Final answer
    x = 1,819.35

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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.