Home / 3,850.95-5,311.97-2,841.65

Finding the Fourth Proportional to 3,850.95, 5,311.97 and 2,841.65

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Solution

The fourth proportional to 3,850.95, 5,311.97 and 2,841.65 is: 3,919.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,850.95 : 5,311.97 = 2,841.65 : x
  2. Step 2: Convert to fraction form
    3,850.95/5,311.97 = 2,841.65/x
  3. Step 3: Cross multiply
    3,850.95x = 5,311.97 × 2,841.65
  4. Step 4: Simplify right side
    3,850.95x = 15,094,765.34
  5. Step 5: Solve for x
    x = 15,094,765.34/3,850.95
  6. Step 6: Final answer
    x = 3,919.75

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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.