Home / 3,161.26-4,361.68-1,902.89

Finding the Fourth Proportional to 3,161.26, 4,361.68 and 1,902.89

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Solution

The fourth proportional to 3,161.26, 4,361.68 and 1,902.89 is: 2,625.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.26 : 4,361.68 = 1,902.89 : x
  2. Step 2: Convert to fraction form
    3,161.26/4,361.68 = 1,902.89/x
  3. Step 3: Cross multiply
    3,161.26x = 4,361.68 × 1,902.89
  4. Step 4: Simplify right side
    3,161.26x = 8,299,810.54
  5. Step 5: Solve for x
    x = 8,299,810.54/3,161.26
  6. Step 6: Final answer
    x = 2,625.47

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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.