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Finding the Fourth Proportional to 2,786.85, 3,843.59 and 2,001.33

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Solution

The fourth proportional to 2,786.85, 3,843.59 and 2,001.33 is: 2,760.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.85 : 3,843.59 = 2,001.33 : x
  2. Step 2: Convert to fraction form
    2,786.85/3,843.59 = 2,001.33/x
  3. Step 3: Cross multiply
    2,786.85x = 3,843.59 × 2,001.33
  4. Step 4: Simplify right side
    2,786.85x = 7,692,281.97
  5. Step 5: Solve for x
    x = 7,692,281.97/2,786.85
  6. Step 6: Final answer
    x = 2,760.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.