Home / 2,239.38-3,090.38-1,244.78

Finding the Fourth Proportional to 2,239.38, 3,090.38 and 1,244.78

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Solution

The fourth proportional to 2,239.38, 3,090.38 and 1,244.78 is: 1,717.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.38 : 3,090.38 = 1,244.78 : x
  2. Step 2: Convert to fraction form
    2,239.38/3,090.38 = 1,244.78/x
  3. Step 3: Cross multiply
    2,239.38x = 3,090.38 × 1,244.78
  4. Step 4: Simplify right side
    2,239.38x = 3,846,843.22
  5. Step 5: Solve for x
    x = 3,846,843.22/2,239.38
  6. Step 6: Final answer
    x = 1,717.82

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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.