Home / 3,396.97-5,081.75-2,939.86

Finding the Fourth Proportional to 3,396.97, 5,081.75 and 2,939.86

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Solution

The fourth proportional to 3,396.97, 5,081.75 and 2,939.86 is: 4,397.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,396.97 : 5,081.75 = 2,939.86 : x
  2. Step 2: Convert to fraction form
    3,396.97/5,081.75 = 2,939.86/x
  3. Step 3: Cross multiply
    3,396.97x = 5,081.75 × 2,939.86
  4. Step 4: Simplify right side
    3,396.97x = 14,939,633.56
  5. Step 5: Solve for x
    x = 14,939,633.56/3,396.97
  6. Step 6: Final answer
    x = 4,397.93

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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.