Home / 3,645.92-5,028.28-3,081.52

Finding the Fourth Proportional to 3,645.92, 5,028.28 and 3,081.52

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Solution

The fourth proportional to 3,645.92, 5,028.28 and 3,081.52 is: 4,249.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,645.92 : 5,028.28 = 3,081.52 : x
  2. Step 2: Convert to fraction form
    3,645.92/5,028.28 = 3,081.52/x
  3. Step 3: Cross multiply
    3,645.92x = 5,028.28 × 3,081.52
  4. Step 4: Simplify right side
    3,645.92x = 15,494,745.39
  5. Step 5: Solve for x
    x = 15,494,745.39/3,645.92
  6. Step 6: Final answer
    x = 4,249.89

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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.