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Finding the Fourth Proportional to 3,999.33, 5,993.76 and 2,148.28

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Solution

The fourth proportional to 3,999.33, 5,993.76 and 2,148.28 is: 3,219.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.33 : 5,993.76 = 2,148.28 : x
  2. Step 2: Convert to fraction form
    3,999.33/5,993.76 = 2,148.28/x
  3. Step 3: Cross multiply
    3,999.33x = 5,993.76 × 2,148.28
  4. Step 4: Simplify right side
    3,999.33x = 12,876,274.73
  5. Step 5: Solve for x
    x = 12,876,274.73/3,999.33
  6. Step 6: Final answer
    x = 3,219.61

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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.