Home / 4,081.21-6,121.94-1,943.61

Finding the Fourth Proportional to 4,081.21, 6,121.94 and 1,943.61

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Solution

The fourth proportional to 4,081.21, 6,121.94 and 1,943.61 is: 2,915.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,081.21 : 6,121.94 = 1,943.61 : x
  2. Step 2: Convert to fraction form
    4,081.21/6,121.94 = 1,943.61/x
  3. Step 3: Cross multiply
    4,081.21x = 6,121.94 × 1,943.61
  4. Step 4: Simplify right side
    4,081.21x = 11,898,663.80
  5. Step 5: Solve for x
    x = 11,898,663.80/4,081.21
  6. Step 6: Final answer
    x = 2,915.47

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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.