Home / 3,231.29-4,839.72-2,809.42

Finding the Fourth Proportional to 3,231.29, 4,839.72 and 2,809.42

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Solution

The fourth proportional to 3,231.29, 4,839.72 and 2,809.42 is: 4,207.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.29 : 4,839.72 = 2,809.42 : x
  2. Step 2: Convert to fraction form
    3,231.29/4,839.72 = 2,809.42/x
  3. Step 3: Cross multiply
    3,231.29x = 4,839.72 × 2,809.42
  4. Step 4: Simplify right side
    3,231.29x = 13,596,783.53
  5. Step 5: Solve for x
    x = 13,596,783.53/3,231.29
  6. Step 6: Final answer
    x = 4,207.85

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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.