Home / 3,684.42-5,083.97-2,112.21

Finding the Fourth Proportional to 3,684.42, 5,083.97 and 2,112.21

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Solution

The fourth proportional to 3,684.42, 5,083.97 and 2,112.21 is: 2,914.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,684.42 : 5,083.97 = 2,112.21 : x
  2. Step 2: Convert to fraction form
    3,684.42/5,083.97 = 2,112.21/x
  3. Step 3: Cross multiply
    3,684.42x = 5,083.97 × 2,112.21
  4. Step 4: Simplify right side
    3,684.42x = 10,738,401.71
  5. Step 5: Solve for x
    x = 10,738,401.71/3,684.42
  6. Step 6: Final answer
    x = 2,914.54

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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.