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Finding the Fourth Proportional to 2,180.75, 3,270.08 and 793.10

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Solution

The fourth proportional to 2,180.75, 3,270.08 and 793.10 is: 1,189.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.75 : 3,270.08 = 793.10 : x
  2. Step 2: Convert to fraction form
    2,180.75/3,270.08 = 793.10/x
  3. Step 3: Cross multiply
    2,180.75x = 3,270.08 × 793.10
  4. Step 4: Simplify right side
    2,180.75x = 2,593,510.61
  5. Step 5: Solve for x
    x = 2,593,510.61/2,180.75
  6. Step 6: Final answer
    x = 1,189.28

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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.