Home / 3,721.16-5,579.98-2,161.66

Finding the Fourth Proportional to 3,721.16, 5,579.98 and 2,161.66

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Solution

The fourth proportional to 3,721.16, 5,579.98 and 2,161.66 is: 3,241.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.16 : 5,579.98 = 2,161.66 : x
  2. Step 2: Convert to fraction form
    3,721.16/5,579.98 = 2,161.66/x
  3. Step 3: Cross multiply
    3,721.16x = 5,579.98 × 2,161.66
  4. Step 4: Simplify right side
    3,721.16x = 12,062,019.57
  5. Step 5: Solve for x
    x = 12,062,019.57/3,721.16
  6. Step 6: Final answer
    x = 3,241.47

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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.