Home / 3,143.82-4,716.49-2,221.19

Finding the Fourth Proportional to 3,143.82, 4,716.49 and 2,221.19

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Solution

The fourth proportional to 3,143.82, 4,716.49 and 2,221.19 is: 3,332.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.82 : 4,716.49 = 2,221.19 : x
  2. Step 2: Convert to fraction form
    3,143.82/4,716.49 = 2,221.19/x
  3. Step 3: Cross multiply
    3,143.82x = 4,716.49 × 2,221.19
  4. Step 4: Simplify right side
    3,143.82x = 10,476,220.42
  5. Step 5: Solve for x
    x = 10,476,220.42/3,143.82
  6. Step 6: Final answer
    x = 3,332.32

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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.