Home / 3,211.25-4,814.53-2,168.66

Finding the Fourth Proportional to 3,211.25, 4,814.53 and 2,168.66

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Solution

The fourth proportional to 3,211.25, 4,814.53 and 2,168.66 is: 3,251.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.25 : 4,814.53 = 2,168.66 : x
  2. Step 2: Convert to fraction form
    3,211.25/4,814.53 = 2,168.66/x
  3. Step 3: Cross multiply
    3,211.25x = 4,814.53 × 2,168.66
  4. Step 4: Simplify right side
    3,211.25x = 10,441,067.79
  5. Step 5: Solve for x
    x = 10,441,067.79/3,211.25
  6. Step 6: Final answer
    x = 3,251.41

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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.