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Finding the Fourth Proportional to 2,001.88, 3,003.78 and 847

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Solution

The fourth proportional to 2,001.88, 3,003.78 and 847 is: 1,270.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,001.88 : 3,003.78 = 847 : x
  2. Step 2: Convert to fraction form
    2,001.88/3,003.78 = 847/x
  3. Step 3: Cross multiply
    2,001.88x = 3,003.78 × 847
  4. Step 4: Simplify right side
    2,001.88x = 2,544,201.66
  5. Step 5: Solve for x
    x = 2,544,201.66/2,001.88
  6. Step 6: Final answer
    x = 1,270.91

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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.