Home / 2,399.40-3,596.97-939.60

Finding the Fourth Proportional to 2,399.40, 3,596.97 and 939.60

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Solution

The fourth proportional to 2,399.40, 3,596.97 and 939.60 is: 1,408.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,399.40 : 3,596.97 = 939.60 : x
  2. Step 2: Convert to fraction form
    2,399.40/3,596.97 = 939.60/x
  3. Step 3: Cross multiply
    2,399.40x = 3,596.97 × 939.60
  4. Step 4: Simplify right side
    2,399.40x = 3,379,713.01
  5. Step 5: Solve for x
    x = 3,379,713.01/2,399.40
  6. Step 6: Final answer
    x = 1,408.57

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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.