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Finding the Fourth Proportional to 2,202.60, 3,304.05 and 642.60

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Solution

The fourth proportional to 2,202.60, 3,304.05 and 642.60 is: 963.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,202.60 : 3,304.05 = 642.60 : x
  2. Step 2: Convert to fraction form
    2,202.60/3,304.05 = 642.60/x
  3. Step 3: Cross multiply
    2,202.60x = 3,304.05 × 642.60
  4. Step 4: Simplify right side
    2,202.60x = 2,123,182.53
  5. Step 5: Solve for x
    x = 2,123,182.53/2,202.60
  6. Step 6: Final answer
    x = 963.94

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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.