Home / 1,726.31-2,382.58-1,028.09

Finding the Fourth Proportional to 1,726.31, 2,382.58 and 1,028.09

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Solution

The fourth proportional to 1,726.31, 2,382.58 and 1,028.09 is: 1,418.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,726.31 : 2,382.58 = 1,028.09 : x
  2. Step 2: Convert to fraction form
    1,726.31/2,382.58 = 1,028.09/x
  3. Step 3: Cross multiply
    1,726.31x = 2,382.58 × 1,028.09
  4. Step 4: Simplify right side
    1,726.31x = 2,449,513.91
  5. Step 5: Solve for x
    x = 2,449,513.91/1,726.31
  6. Step 6: Final answer
    x = 1,418.93

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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.