Home / 3,919.36-5,399.32-3,358.04

Finding the Fourth Proportional to 3,919.36, 5,399.32 and 3,358.04

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Solution

The fourth proportional to 3,919.36, 5,399.32 and 3,358.04 is: 4,626.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.36 : 5,399.32 = 3,358.04 : x
  2. Step 2: Convert to fraction form
    3,919.36/5,399.32 = 3,358.04/x
  3. Step 3: Cross multiply
    3,919.36x = 5,399.32 × 3,358.04
  4. Step 4: Simplify right side
    3,919.36x = 18,131,132.53
  5. Step 5: Solve for x
    x = 18,131,132.53/3,919.36
  6. Step 6: Final answer
    x = 4,626.04

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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.