Home / 3,785.26-5,222.46-2,212.78

Finding the Fourth Proportional to 3,785.26, 5,222.46 and 2,212.78

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Solution

The fourth proportional to 3,785.26, 5,222.46 and 2,212.78 is: 3,052.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.26 : 5,222.46 = 2,212.78 : x
  2. Step 2: Convert to fraction form
    3,785.26/5,222.46 = 2,212.78/x
  3. Step 3: Cross multiply
    3,785.26x = 5,222.46 × 2,212.78
  4. Step 4: Simplify right side
    3,785.26x = 11,556,155.04
  5. Step 5: Solve for x
    x = 11,556,155.04/3,785.26
  6. Step 6: Final answer
    x = 3,052.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.