Home / 4,121.91-6,185.07-1,930.66

Finding the Fourth Proportional to 4,121.91, 6,185.07 and 1,930.66

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Solution

The fourth proportional to 4,121.91, 6,185.07 and 1,930.66 is: 2,897.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.91 : 6,185.07 = 1,930.66 : x
  2. Step 2: Convert to fraction form
    4,121.91/6,185.07 = 1,930.66/x
  3. Step 3: Cross multiply
    4,121.91x = 6,185.07 × 1,930.66
  4. Step 4: Simplify right side
    4,121.91x = 11,941,251.78
  5. Step 5: Solve for x
    x = 11,941,251.78/4,121.91
  6. Step 6: Final answer
    x = 2,897.02

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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.