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Finding the Fourth Proportional to 2,767.89, 4,151.19 and 793.47

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Solution

The fourth proportional to 2,767.89, 4,151.19 and 793.47 is: 1,190.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,767.89 : 4,151.19 = 793.47 : x
  2. Step 2: Convert to fraction form
    2,767.89/4,151.19 = 793.47/x
  3. Step 3: Cross multiply
    2,767.89x = 4,151.19 × 793.47
  4. Step 4: Simplify right side
    2,767.89x = 3,293,844.73
  5. Step 5: Solve for x
    x = 3,293,844.73/2,767.89
  6. Step 6: Final answer
    x = 1,190.02

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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.