Home / 2,231.89-3,350.27-1,645.07

Finding the Fourth Proportional to 2,231.89, 3,350.27 and 1,645.07

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Solution

The fourth proportional to 2,231.89, 3,350.27 and 1,645.07 is: 2,469.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.89 : 3,350.27 = 1,645.07 : x
  2. Step 2: Convert to fraction form
    2,231.89/3,350.27 = 1,645.07/x
  3. Step 3: Cross multiply
    2,231.89x = 3,350.27 × 1,645.07
  4. Step 4: Simplify right side
    2,231.89x = 5,511,431.90
  5. Step 5: Solve for x
    x = 5,511,431.90/2,231.89
  6. Step 6: Final answer
    x = 2,469.40

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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.