Home / 2,638.26-3,642.46-1,694.43

Finding the Fourth Proportional to 2,638.26, 3,642.46 and 1,694.43

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Solution

The fourth proportional to 2,638.26, 3,642.46 and 1,694.43 is: 2,339.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638.26 : 3,642.46 = 1,694.43 : x
  2. Step 2: Convert to fraction form
    2,638.26/3,642.46 = 1,694.43/x
  3. Step 3: Cross multiply
    2,638.26x = 3,642.46 × 1,694.43
  4. Step 4: Simplify right side
    2,638.26x = 6,171,896.09
  5. Step 5: Solve for x
    x = 6,171,896.09/2,638.26
  6. Step 6: Final answer
    x = 2,339.38

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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.