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Finding the Fourth Proportional to 2,218.20, 3,327.04 and 574.62

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Solution

The fourth proportional to 2,218.20, 3,327.04 and 574.62 is: 861.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.20 : 3,327.04 = 574.62 : x
  2. Step 2: Convert to fraction form
    2,218.20/3,327.04 = 574.62/x
  3. Step 3: Cross multiply
    2,218.20x = 3,327.04 × 574.62
  4. Step 4: Simplify right side
    2,218.20x = 1,911,783.72
  5. Step 5: Solve for x
    x = 1,911,783.72/2,218.20
  6. Step 6: Final answer
    x = 861.86

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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.