Home / 3,178.89-4,767.66-2,251.80

Finding the Fourth Proportional to 3,178.89, 4,767.66 and 2,251.80

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Solution

The fourth proportional to 3,178.89, 4,767.66 and 2,251.80 is: 3,377.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.89 : 4,767.66 = 2,251.80 : x
  2. Step 2: Convert to fraction form
    3,178.89/4,767.66 = 2,251.80/x
  3. Step 3: Cross multiply
    3,178.89x = 4,767.66 × 2,251.80
  4. Step 4: Simplify right side
    3,178.89x = 10,735,816.79
  5. Step 5: Solve for x
    x = 10,735,816.79/3,178.89
  6. Step 6: Final answer
    x = 3,377.22

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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.