Home / 3,917.69-5,878.92-2,161.94

Finding the Fourth Proportional to 3,917.69, 5,878.92 and 2,161.94

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Solution

The fourth proportional to 3,917.69, 5,878.92 and 2,161.94 is: 3,244.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.69 : 5,878.92 = 2,161.94 : x
  2. Step 2: Convert to fraction form
    3,917.69/5,878.92 = 2,161.94/x
  3. Step 3: Cross multiply
    3,917.69x = 5,878.92 × 2,161.94
  4. Step 4: Simplify right side
    3,917.69x = 12,709,872.30
  5. Step 5: Solve for x
    x = 12,709,872.30/3,917.69
  6. Step 6: Final answer
    x = 3,244.23

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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.