Home / 3,186.45-4,781.29-2,255.38

Finding the Fourth Proportional to 3,186.45, 4,781.29 and 2,255.38

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Solution

The fourth proportional to 3,186.45, 4,781.29 and 2,255.38 is: 3,384.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.45 : 4,781.29 = 2,255.38 : x
  2. Step 2: Convert to fraction form
    3,186.45/4,781.29 = 2,255.38/x
  3. Step 3: Cross multiply
    3,186.45x = 4,781.29 × 2,255.38
  4. Step 4: Simplify right side
    3,186.45x = 10,783,605.56
  5. Step 5: Solve for x
    x = 10,783,605.56/3,186.45
  6. Step 6: Final answer
    x = 3,384.21

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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.