Home / 2,629.54-3,940.46-1,329.22

Finding the Fourth Proportional to 2,629.54, 3,940.46 and 1,329.22

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Solution

The fourth proportional to 2,629.54, 3,940.46 and 1,329.22 is: 1,991.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.54 : 3,940.46 = 1,329.22 : x
  2. Step 2: Convert to fraction form
    2,629.54/3,940.46 = 1,329.22/x
  3. Step 3: Cross multiply
    2,629.54x = 3,940.46 × 1,329.22
  4. Step 4: Simplify right side
    2,629.54x = 5,237,738.24
  5. Step 5: Solve for x
    x = 5,237,738.24/2,629.54
  6. Step 6: Final answer
    x = 1,991.88

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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.