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Finding the Fourth Proportional to 3,999.33, 5,999.02 and 2,621.39

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Solution

The fourth proportional to 3,999.33, 5,999.02 and 2,621.39 is: 3,932.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.33 : 5,999.02 = 2,621.39 : x
  2. Step 2: Convert to fraction form
    3,999.33/5,999.02 = 2,621.39/x
  3. Step 3: Cross multiply
    3,999.33x = 5,999.02 × 2,621.39
  4. Step 4: Simplify right side
    3,999.33x = 15,725,768.32
  5. Step 5: Solve for x
    x = 15,725,768.32/3,999.33
  6. Step 6: Final answer
    x = 3,932.10

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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.