Home / 3,218.54-4,822.40-2,231.69

Finding the Fourth Proportional to 3,218.54, 4,822.40 and 2,231.69

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Solution

The fourth proportional to 3,218.54, 4,822.40 and 2,231.69 is: 3,343.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.54 : 4,822.40 = 2,231.69 : x
  2. Step 2: Convert to fraction form
    3,218.54/4,822.40 = 2,231.69/x
  3. Step 3: Cross multiply
    3,218.54x = 4,822.40 × 2,231.69
  4. Step 4: Simplify right side
    3,218.54x = 10,762,083.32
  5. Step 5: Solve for x
    x = 10,762,083.32/3,218.54
  6. Step 6: Final answer
    x = 3,343.78

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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.