Home / 2,245.10-3,111.37-2,213.78

Finding the Fourth Proportional to 2,245.10, 3,111.37 and 2,213.78

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Solution

The fourth proportional to 2,245.10, 3,111.37 and 2,213.78 is: 3,067.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,245.10 : 3,111.37 = 2,213.78 : x
  2. Step 2: Convert to fraction form
    2,245.10/3,111.37 = 2,213.78/x
  3. Step 3: Cross multiply
    2,245.10x = 3,111.37 × 2,213.78
  4. Step 4: Simplify right side
    2,245.10x = 6,887,888.68
  5. Step 5: Solve for x
    x = 6,887,888.68/2,245.10
  6. Step 6: Final answer
    x = 3,067.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.