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Finding the Fourth Proportional to 3,993.90, 5,991.32 and 2,350.68

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Solution

The fourth proportional to 3,993.90, 5,991.32 and 2,350.68 is: 3,526.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.90 : 5,991.32 = 2,350.68 : x
  2. Step 2: Convert to fraction form
    3,993.90/5,991.32 = 2,350.68/x
  3. Step 3: Cross multiply
    3,993.90x = 5,991.32 × 2,350.68
  4. Step 4: Simplify right side
    3,993.90x = 14,083,676.10
  5. Step 5: Solve for x
    x = 14,083,676.10/3,993.90
  6. Step 6: Final answer
    x = 3,526.30

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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.