Home / 3,212.75-4,816.79-2,170.14

Finding the Fourth Proportional to 3,212.75, 4,816.79 and 2,170.14

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Solution

The fourth proportional to 3,212.75, 4,816.79 and 2,170.14 is: 3,253.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.75 : 4,816.79 = 2,170.14 : x
  2. Step 2: Convert to fraction form
    3,212.75/4,816.79 = 2,170.14/x
  3. Step 3: Cross multiply
    3,212.75x = 4,816.79 × 2,170.14
  4. Step 4: Simplify right side
    3,212.75x = 10,453,105.94
  5. Step 5: Solve for x
    x = 10,453,105.94/3,212.75
  6. Step 6: Final answer
    x = 3,253.64

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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.