Home / 3,830.41-5,747.44-1,981.18

Finding the Fourth Proportional to 3,830.41, 5,747.44 and 1,981.18

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Solution

The fourth proportional to 3,830.41, 5,747.44 and 1,981.18 is: 2,972.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,830.41 : 5,747.44 = 1,981.18 : x
  2. Step 2: Convert to fraction form
    3,830.41/5,747.44 = 1,981.18/x
  3. Step 3: Cross multiply
    3,830.41x = 5,747.44 × 1,981.18
  4. Step 4: Simplify right side
    3,830.41x = 11,386,713.18
  5. Step 5: Solve for x
    x = 11,386,713.18/3,830.41
  6. Step 6: Final answer
    x = 2,972.71

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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.