Home / 1,974.38-2,724.81-1,135.25

Finding the Fourth Proportional to 1,974.38, 2,724.81 and 1,135.25

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Solution

The fourth proportional to 1,974.38, 2,724.81 and 1,135.25 is: 1,566.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974.38 : 2,724.81 = 1,135.25 : x
  2. Step 2: Convert to fraction form
    1,974.38/2,724.81 = 1,135.25/x
  3. Step 3: Cross multiply
    1,974.38x = 2,724.81 × 1,135.25
  4. Step 4: Simplify right side
    1,974.38x = 3,093,321.25
  5. Step 5: Solve for x
    x = 3,093,321.25/1,974.38
  6. Step 6: Final answer
    x = 1,566.73

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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.