Home / 2,230.73-3,078.41-1,236.06

Finding the Fourth Proportional to 2,230.73, 3,078.41 and 1,236.06

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Solution

The fourth proportional to 2,230.73, 3,078.41 and 1,236.06 is: 1,705.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,230.73 : 3,078.41 = 1,236.06 : x
  2. Step 2: Convert to fraction form
    2,230.73/3,078.41 = 1,236.06/x
  3. Step 3: Cross multiply
    2,230.73x = 3,078.41 × 1,236.06
  4. Step 4: Simplify right side
    2,230.73x = 3,805,093.28
  5. Step 5: Solve for x
    x = 3,805,093.28/2,230.73
  6. Step 6: Final answer
    x = 1,705.77

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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.