Home / 3,913.44-5,396.31-3,199.92

Finding the Fourth Proportional to 3,913.44, 5,396.31 and 3,199.92

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Solution

The fourth proportional to 3,913.44, 5,396.31 and 3,199.92 is: 4,412.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.44 : 5,396.31 = 3,199.92 : x
  2. Step 2: Convert to fraction form
    3,913.44/5,396.31 = 3,199.92/x
  3. Step 3: Cross multiply
    3,913.44x = 5,396.31 × 3,199.92
  4. Step 4: Simplify right side
    3,913.44x = 17,267,760.30
  5. Step 5: Solve for x
    x = 17,267,760.30/3,913.44
  6. Step 6: Final answer
    x = 4,412.42

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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.