Home / 3,867.14-5,331.42-3,305.21

Finding the Fourth Proportional to 3,867.14, 5,331.42 and 3,305.21

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Solution

The fourth proportional to 3,867.14, 5,331.42 and 3,305.21 is: 4,556.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.14 : 5,331.42 = 3,305.21 : x
  2. Step 2: Convert to fraction form
    3,867.14/5,331.42 = 3,305.21/x
  3. Step 3: Cross multiply
    3,867.14x = 5,331.42 × 3,305.21
  4. Step 4: Simplify right side
    3,867.14x = 17,621,436.04
  5. Step 5: Solve for x
    x = 17,621,436.04/3,867.14
  6. Step 6: Final answer
    x = 4,556.71

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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.