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Finding the Fourth Proportional to 3,256.61, 4,884.84 and 791.33

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Solution

The fourth proportional to 3,256.61, 4,884.84 and 791.33 is: 1,186.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,256.61 : 4,884.84 = 791.33 : x
  2. Step 2: Convert to fraction form
    3,256.61/4,884.84 = 791.33/x
  3. Step 3: Cross multiply
    3,256.61x = 4,884.84 × 791.33
  4. Step 4: Simplify right side
    3,256.61x = 3,865,496.01
  5. Step 5: Solve for x
    x = 3,865,496.01/3,256.61
  6. Step 6: Final answer
    x = 1,186.97

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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.