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Finding the Fourth Proportional to 1,392.33, 2,084.41 and 732.65

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Solution

The fourth proportional to 1,392.33, 2,084.41 and 732.65 is: 1,096.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392.33 : 2,084.41 = 732.65 : x
  2. Step 2: Convert to fraction form
    1,392.33/2,084.41 = 732.65/x
  3. Step 3: Cross multiply
    1,392.33x = 2,084.41 × 732.65
  4. Step 4: Simplify right side
    1,392.33x = 1,527,130.73
  5. Step 5: Solve for x
    x = 1,527,130.73/1,392.33
  6. Step 6: Final answer
    x = 1,096.82

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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.