Home / 2,249.74-3,104.81-1,305.78

Finding the Fourth Proportional to 2,249.74, 3,104.81 and 1,305.78

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Solution

The fourth proportional to 2,249.74, 3,104.81 and 1,305.78 is: 1,802.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,249.74 : 3,104.81 = 1,305.78 : x
  2. Step 2: Convert to fraction form
    2,249.74/3,104.81 = 1,305.78/x
  3. Step 3: Cross multiply
    2,249.74x = 3,104.81 × 1,305.78
  4. Step 4: Simplify right side
    2,249.74x = 4,054,198.80
  5. Step 5: Solve for x
    x = 4,054,198.80/2,249.74
  6. Step 6: Final answer
    x = 1,802.07

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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.