Home / 3,722.19-5,136.06-2,229.78

Finding the Fourth Proportional to 3,722.19, 5,136.06 and 2,229.78

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Solution

The fourth proportional to 3,722.19, 5,136.06 and 2,229.78 is: 3,076.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,722.19 : 5,136.06 = 2,229.78 : x
  2. Step 2: Convert to fraction form
    3,722.19/5,136.06 = 2,229.78/x
  3. Step 3: Cross multiply
    3,722.19x = 5,136.06 × 2,229.78
  4. Step 4: Simplify right side
    3,722.19x = 11,452,283.87
  5. Step 5: Solve for x
    x = 11,452,283.87/3,722.19
  6. Step 6: Final answer
    x = 3,076.76

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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.