Home / 3,438.26-5,153.55-3,161.48

Finding the Fourth Proportional to 3,438.26, 5,153.55 and 3,161.48

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Solution

The fourth proportional to 3,438.26, 5,153.55 and 3,161.48 is: 4,738.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.26 : 5,153.55 = 3,161.48 : x
  2. Step 2: Convert to fraction form
    3,438.26/5,153.55 = 3,161.48/x
  3. Step 3: Cross multiply
    3,438.26x = 5,153.55 × 3,161.48
  4. Step 4: Simplify right side
    3,438.26x = 16,292,845.25
  5. Step 5: Solve for x
    x = 16,292,845.25/3,438.26
  6. Step 6: Final answer
    x = 4,738.69

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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.