Home / 3,976.09-5,963.12-1,636.76

Finding the Fourth Proportional to 3,976.09, 5,963.12 and 1,636.76

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Solution

The fourth proportional to 3,976.09, 5,963.12 and 1,636.76 is: 2,454.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.09 : 5,963.12 = 1,636.76 : x
  2. Step 2: Convert to fraction form
    3,976.09/5,963.12 = 1,636.76/x
  3. Step 3: Cross multiply
    3,976.09x = 5,963.12 × 1,636.76
  4. Step 4: Simplify right side
    3,976.09x = 9,760,175.61
  5. Step 5: Solve for x
    x = 9,760,175.61/3,976.09
  6. Step 6: Final answer
    x = 2,454.72

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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.