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Finding the Fourth Proportional to 2,218, 3,327.18 and 736.91

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Solution

The fourth proportional to 2,218, 3,327.18 and 736.91 is: 1,105.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218 : 3,327.18 = 736.91 : x
  2. Step 2: Convert to fraction form
    2,218/3,327.18 = 736.91/x
  3. Step 3: Cross multiply
    2,218x = 3,327.18 × 736.91
  4. Step 4: Simplify right side
    2,218x = 2,451,832.21
  5. Step 5: Solve for x
    x = 2,451,832.21/2,218
  6. Step 6: Final answer
    x = 1,105.42

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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.