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Finding the Fourth Proportional to 1,818.86, 2,722.82 and 1,234.44

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Solution

The fourth proportional to 1,818.86, 2,722.82 and 1,234.44 is: 1,847.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.86 : 2,722.82 = 1,234.44 : x
  2. Step 2: Convert to fraction form
    1,818.86/2,722.82 = 1,234.44/x
  3. Step 3: Cross multiply
    1,818.86x = 2,722.82 × 1,234.44
  4. Step 4: Simplify right side
    1,818.86x = 3,361,151.75
  5. Step 5: Solve for x
    x = 3,361,151.75/1,818.86
  6. Step 6: Final answer
    x = 1,847.95

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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.