Home / 3,639.81-5,021.41-2,241.75

Finding the Fourth Proportional to 3,639.81, 5,021.41 and 2,241.75

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Solution

The fourth proportional to 3,639.81, 5,021.41 and 2,241.75 is: 3,092.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.81 : 5,021.41 = 2,241.75 : x
  2. Step 2: Convert to fraction form
    3,639.81/5,021.41 = 2,241.75/x
  3. Step 3: Cross multiply
    3,639.81x = 5,021.41 × 2,241.75
  4. Step 4: Simplify right side
    3,639.81x = 11,256,745.87
  5. Step 5: Solve for x
    x = 11,256,745.87/3,639.81
  6. Step 6: Final answer
    x = 3,092.67

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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.