Home / 3,912.12-5,401.20-2,736

Finding the Fourth Proportional to 3,912.12, 5,401.20 and 2,736

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Solution

The fourth proportional to 3,912.12, 5,401.20 and 2,736 is: 3,777.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.12 : 5,401.20 = 2,736 : x
  2. Step 2: Convert to fraction form
    3,912.12/5,401.20 = 2,736/x
  3. Step 3: Cross multiply
    3,912.12x = 5,401.20 × 2,736
  4. Step 4: Simplify right side
    3,912.12x = 14,777,683.20
  5. Step 5: Solve for x
    x = 14,777,683.20/3,912.12
  6. Step 6: Final answer
    x = 3,777.41

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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.