Home / 2,273.81-3,137.83-1,279.09

Finding the Fourth Proportional to 2,273.81, 3,137.83 and 1,279.09

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Solution

The fourth proportional to 2,273.81, 3,137.83 and 1,279.09 is: 1,765.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,273.81 : 3,137.83 = 1,279.09 : x
  2. Step 2: Convert to fraction form
    2,273.81/3,137.83 = 1,279.09/x
  3. Step 3: Cross multiply
    2,273.81x = 3,137.83 × 1,279.09
  4. Step 4: Simplify right side
    2,273.81x = 4,013,555.93
  5. Step 5: Solve for x
    x = 4,013,555.93/2,273.81
  6. Step 6: Final answer
    x = 1,765.12

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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.