Home / 2,965.14-4,091.83-2,115.95

Finding the Fourth Proportional to 2,965.14, 4,091.83 and 2,115.95

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Solution

The fourth proportional to 2,965.14, 4,091.83 and 2,115.95 is: 2,919.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,965.14 : 4,091.83 = 2,115.95 : x
  2. Step 2: Convert to fraction form
    2,965.14/4,091.83 = 2,115.95/x
  3. Step 3: Cross multiply
    2,965.14x = 4,091.83 × 2,115.95
  4. Step 4: Simplify right side
    2,965.14x = 8,658,081.94
  5. Step 5: Solve for x
    x = 8,658,081.94/2,965.14
  6. Step 6: Final answer
    x = 2,919.96

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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.