Home / 3,028.09-4,180.26-1,910.75

Finding the Fourth Proportional to 3,028.09, 4,180.26 and 1,910.75

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Solution

The fourth proportional to 3,028.09, 4,180.26 and 1,910.75 is: 2,637.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,028.09 : 4,180.26 = 1,910.75 : x
  2. Step 2: Convert to fraction form
    3,028.09/4,180.26 = 1,910.75/x
  3. Step 3: Cross multiply
    3,028.09x = 4,180.26 × 1,910.75
  4. Step 4: Simplify right side
    3,028.09x = 7,987,431.80
  5. Step 5: Solve for x
    x = 7,987,431.80/3,028.09
  6. Step 6: Final answer
    x = 2,637.78

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Half scale
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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.