Home / 7,936.09-11,906.12-2,389.31

Finding the Fourth Proportional to 7,936.09, 11,906.12 and 2,389.31

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Solution

The fourth proportional to 7,936.09, 11,906.12 and 2,389.31 is: 3,584.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,936.09 : 11,906.12 = 2,389.31 : x
  2. Step 2: Convert to fraction form
    7,936.09/11,906.12 = 2,389.31/x
  3. Step 3: Cross multiply
    7,936.09x = 11,906.12 × 2,389.31
  4. Step 4: Simplify right side
    7,936.09x = 28,447,469.64
  5. Step 5: Solve for x
    x = 28,447,469.64/7,936.09
  6. Step 6: Final answer
    x = 3,584.57

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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.