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Finding the Fourth Proportional to 3,999.75, 6,001.79 and 1,947.75

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Solution

The fourth proportional to 3,999.75, 6,001.79 and 1,947.75 is: 2,922.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.75 : 6,001.79 = 1,947.75 : x
  2. Step 2: Convert to fraction form
    3,999.75/6,001.79 = 1,947.75/x
  3. Step 3: Cross multiply
    3,999.75x = 6,001.79 × 1,947.75
  4. Step 4: Simplify right side
    3,999.75x = 11,689,986.47
  5. Step 5: Solve for x
    x = 11,689,986.47/3,999.75
  6. Step 6: Final answer
    x = 2,922.68

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1.5x scale

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.