Home / 3,983.58-5,497.92-2,868.21

Finding the Fourth Proportional to 3,983.58, 5,497.92 and 2,868.21

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Solution

The fourth proportional to 3,983.58, 5,497.92 and 2,868.21 is: 3,958.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.58 : 5,497.92 = 2,868.21 : x
  2. Step 2: Convert to fraction form
    3,983.58/5,497.92 = 2,868.21/x
  3. Step 3: Cross multiply
    3,983.58x = 5,497.92 × 2,868.21
  4. Step 4: Simplify right side
    3,983.58x = 15,769,189.12
  5. Step 5: Solve for x
    x = 15,769,189.12/3,983.58
  6. Step 6: Final answer
    x = 3,958.55

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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.