Home / 3,078.82-4,249.19-1,752.65

Finding the Fourth Proportional to 3,078.82, 4,249.19 and 1,752.65

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Solution

The fourth proportional to 3,078.82, 4,249.19 and 1,752.65 is: 2,418.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.82 : 4,249.19 = 1,752.65 : x
  2. Step 2: Convert to fraction form
    3,078.82/4,249.19 = 1,752.65/x
  3. Step 3: Cross multiply
    3,078.82x = 4,249.19 × 1,752.65
  4. Step 4: Simplify right side
    3,078.82x = 7,447,342.85
  5. Step 5: Solve for x
    x = 7,447,342.85/3,078.82
  6. Step 6: Final answer
    x = 2,418.90

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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.