Home / 3,936.90-5,427.09-2,608.50

Finding the Fourth Proportional to 3,936.90, 5,427.09 and 2,608.50

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Solution

The fourth proportional to 3,936.90, 5,427.09 and 2,608.50 is: 3,595.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.90 : 5,427.09 = 2,608.50 : x
  2. Step 2: Convert to fraction form
    3,936.90/5,427.09 = 2,608.50/x
  3. Step 3: Cross multiply
    3,936.90x = 5,427.09 × 2,608.50
  4. Step 4: Simplify right side
    3,936.90x = 14,156,564.27
  5. Step 5: Solve for x
    x = 14,156,564.27/3,936.90
  6. Step 6: Final answer
    x = 3,595.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.