Home / 3,991.14-5,989.44-1,394.10

Finding the Fourth Proportional to 3,991.14, 5,989.44 and 1,394.10

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Solution

The fourth proportional to 3,991.14, 5,989.44 and 1,394.10 is: 2,092.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.14 : 5,989.44 = 1,394.10 : x
  2. Step 2: Convert to fraction form
    3,991.14/5,989.44 = 1,394.10/x
  3. Step 3: Cross multiply
    3,991.14x = 5,989.44 × 1,394.10
  4. Step 4: Simplify right side
    3,991.14x = 8,349,878.30
  5. Step 5: Solve for x
    x = 8,349,878.30/3,991.14
  6. Step 6: Final answer
    x = 2,092.10

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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.