Home / 1,738.38-2,605.32-1,326

Finding the Fourth Proportional to 1,738.38, 2,605.32 and 1,326

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Solution

The fourth proportional to 1,738.38, 2,605.32 and 1,326 is: 1,987.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,738.38 : 2,605.32 = 1,326 : x
  2. Step 2: Convert to fraction form
    1,738.38/2,605.32 = 1,326/x
  3. Step 3: Cross multiply
    1,738.38x = 2,605.32 × 1,326
  4. Step 4: Simplify right side
    1,738.38x = 3,454,654.32
  5. Step 5: Solve for x
    x = 3,454,654.32/1,738.38
  6. Step 6: Final answer
    x = 1,987.28

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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.