Home / 3,930.04-5,424.12-2,251.54

Finding the Fourth Proportional to 3,930.04, 5,424.12 and 2,251.54

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Solution

The fourth proportional to 3,930.04, 5,424.12 and 2,251.54 is: 3,107.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.04 : 5,424.12 = 2,251.54 : x
  2. Step 2: Convert to fraction form
    3,930.04/5,424.12 = 2,251.54/x
  3. Step 3: Cross multiply
    3,930.04x = 5,424.12 × 2,251.54
  4. Step 4: Simplify right side
    3,930.04x = 12,212,623.14
  5. Step 5: Solve for x
    x = 12,212,623.14/3,930.04
  6. Step 6: Final answer
    x = 3,107.51

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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.