Home / 3,912.36-5,863.68-1,722.12

Finding the Fourth Proportional to 3,912.36, 5,863.68 and 1,722.12

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Solution

The fourth proportional to 3,912.36, 5,863.68 and 1,722.12 is: 2,581.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.36 : 5,863.68 = 1,722.12 : x
  2. Step 2: Convert to fraction form
    3,912.36/5,863.68 = 1,722.12/x
  3. Step 3: Cross multiply
    3,912.36x = 5,863.68 × 1,722.12
  4. Step 4: Simplify right side
    3,912.36x = 10,097,960.60
  5. Step 5: Solve for x
    x = 10,097,960.60/3,912.36
  6. Step 6: Final answer
    x = 2,581.04

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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.