Home / 3,370.88-5,055.89-2,121.66

Finding the Fourth Proportional to 3,370.88, 5,055.89 and 2,121.66

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Solution

The fourth proportional to 3,370.88, 5,055.89 and 2,121.66 is: 3,182.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,370.88 : 5,055.89 = 2,121.66 : x
  2. Step 2: Convert to fraction form
    3,370.88/5,055.89 = 2,121.66/x
  3. Step 3: Cross multiply
    3,370.88x = 5,055.89 × 2,121.66
  4. Step 4: Simplify right side
    3,370.88x = 10,726,879.58
  5. Step 5: Solve for x
    x = 10,726,879.58/3,370.88
  6. Step 6: Final answer
    x = 3,182.22

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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.