Home / 3,189.09-4,399.86-1,993.26

Finding the Fourth Proportional to 3,189.09, 4,399.86 and 1,993.26

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Solution

The fourth proportional to 3,189.09, 4,399.86 and 1,993.26 is: 2,750.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.09 : 4,399.86 = 1,993.26 : x
  2. Step 2: Convert to fraction form
    3,189.09/4,399.86 = 1,993.26/x
  3. Step 3: Cross multiply
    3,189.09x = 4,399.86 × 1,993.26
  4. Step 4: Simplify right side
    3,189.09x = 8,770,064.94
  5. Step 5: Solve for x
    x = 8,770,064.94/3,189.09
  6. Step 6: Final answer
    x = 2,750.02

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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.