Home / 2,147.72-3,226.97-1,368.07

Finding the Fourth Proportional to 2,147.72, 3,226.97 and 1,368.07

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Solution

The fourth proportional to 2,147.72, 3,226.97 and 1,368.07 is: 2,055.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147.72 : 3,226.97 = 1,368.07 : x
  2. Step 2: Convert to fraction form
    2,147.72/3,226.97 = 1,368.07/x
  3. Step 3: Cross multiply
    2,147.72x = 3,226.97 × 1,368.07
  4. Step 4: Simplify right side
    2,147.72x = 4,414,716.20
  5. Step 5: Solve for x
    x = 4,414,716.20/2,147.72
  6. Step 6: Final answer
    x = 2,055.54

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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.