Home / 3,920.14-5,409.43-2,241.49

Finding the Fourth Proportional to 3,920.14, 5,409.43 and 2,241.49

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Solution

The fourth proportional to 3,920.14, 5,409.43 and 2,241.49 is: 3,093.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,920.14 : 5,409.43 = 2,241.49 : x
  2. Step 2: Convert to fraction form
    3,920.14/5,409.43 = 2,241.49/x
  3. Step 3: Cross multiply
    3,920.14x = 5,409.43 × 2,241.49
  4. Step 4: Simplify right side
    3,920.14x = 12,125,183.25
  5. Step 5: Solve for x
    x = 12,125,183.25/3,920.14
  6. Step 6: Final answer
    x = 3,093.05

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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.