Home / 3,991.25-5,989.44-1,682.75

Finding the Fourth Proportional to 3,991.25, 5,989.44 and 1,682.75

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Solution

The fourth proportional to 3,991.25, 5,989.44 and 1,682.75 is: 2,525.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.25 : 5,989.44 = 1,682.75 : x
  2. Step 2: Convert to fraction form
    3,991.25/5,989.44 = 1,682.75/x
  3. Step 3: Cross multiply
    3,991.25x = 5,989.44 × 1,682.75
  4. Step 4: Simplify right side
    3,991.25x = 10,078,730.16
  5. Step 5: Solve for x
    x = 10,078,730.16/3,991.25
  6. Step 6: Final answer
    x = 2,525.21

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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.