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Finding the Fourth Proportional to 1,962.33, 2,942.88 and 867.62

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Solution

The fourth proportional to 1,962.33, 2,942.88 and 867.62 is: 1,301.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962.33 : 2,942.88 = 867.62 : x
  2. Step 2: Convert to fraction form
    1,962.33/2,942.88 = 867.62/x
  3. Step 3: Cross multiply
    1,962.33x = 2,942.88 × 867.62
  4. Step 4: Simplify right side
    1,962.33x = 2,553,286.83
  5. Step 5: Solve for x
    x = 2,553,286.83/1,962.33
  6. Step 6: Final answer
    x = 1,301.15

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.