Home / 3,431.22-5,147.10-1,351.08

Finding the Fourth Proportional to 3,431.22, 5,147.10 and 1,351.08

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Solution

The fourth proportional to 3,431.22, 5,147.10 and 1,351.08 is: 2,026.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.22 : 5,147.10 = 1,351.08 : x
  2. Step 2: Convert to fraction form
    3,431.22/5,147.10 = 1,351.08/x
  3. Step 3: Cross multiply
    3,431.22x = 5,147.10 × 1,351.08
  4. Step 4: Simplify right side
    3,431.22x = 6,954,143.87
  5. Step 5: Solve for x
    x = 6,954,143.87/3,431.22
  6. Step 6: Final answer
    x = 2,026.73

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1.5x scale

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.