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Finding the Fourth Proportional to 3,990.03, 5,982.94 and 1,796.86

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Solution

The fourth proportional to 3,990.03, 5,982.94 and 1,796.86 is: 2,694.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990.03 : 5,982.94 = 1,796.86 : x
  2. Step 2: Convert to fraction form
    3,990.03/5,982.94 = 1,796.86/x
  3. Step 3: Cross multiply
    3,990.03x = 5,982.94 × 1,796.86
  4. Step 4: Simplify right side
    3,990.03x = 10,750,505.57
  5. Step 5: Solve for x
    x = 10,750,505.57/3,990.03
  6. Step 6: Final answer
    x = 2,694.34

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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.