Home / 3,369.88-5,054.39-2,120.66

Finding the Fourth Proportional to 3,369.88, 5,054.39 and 2,120.66

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Solution

The fourth proportional to 3,369.88, 5,054.39 and 2,120.66 is: 3,180.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,369.88 : 5,054.39 = 2,120.66 : x
  2. Step 2: Convert to fraction form
    3,369.88/5,054.39 = 2,120.66/x
  3. Step 3: Cross multiply
    3,369.88x = 5,054.39 × 2,120.66
  4. Step 4: Simplify right side
    3,369.88x = 10,718,642.70
  5. Step 5: Solve for x
    x = 10,718,642.70/3,369.88
  6. Step 6: Final answer
    x = 3,180.72

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1.5x scale

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.