Home / 2,431.26-3,351.42-1,906.38

Finding the Fourth Proportional to 2,431.26, 3,351.42 and 1,906.38

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Solution

The fourth proportional to 2,431.26, 3,351.42 and 1,906.38 is: 2,627.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.26 : 3,351.42 = 1,906.38 : x
  2. Step 2: Convert to fraction form
    2,431.26/3,351.42 = 1,906.38/x
  3. Step 3: Cross multiply
    2,431.26x = 3,351.42 × 1,906.38
  4. Step 4: Simplify right side
    2,431.26x = 6,389,080.06
  5. Step 5: Solve for x
    x = 6,389,080.06/2,431.26
  6. Step 6: Final answer
    x = 2,627.89

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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.