Home / 3,424.48-5,129.97-2,171.21

Finding the Fourth Proportional to 3,424.48, 5,129.97 and 2,171.21

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Solution

The fourth proportional to 3,424.48, 5,129.97 and 2,171.21 is: 3,252.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,424.48 : 5,129.97 = 2,171.21 : x
  2. Step 2: Convert to fraction form
    3,424.48/5,129.97 = 2,171.21/x
  3. Step 3: Cross multiply
    3,424.48x = 5,129.97 × 2,171.21
  4. Step 4: Simplify right side
    3,424.48x = 11,138,208.37
  5. Step 5: Solve for x
    x = 11,138,208.37/3,424.48
  6. Step 6: Final answer
    x = 3,252.53

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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.