Home / 1,251.27-1,726.38-1,085.22

Finding the Fourth Proportional to 1,251.27, 1,726.38 and 1,085.22

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Solution

The fourth proportional to 1,251.27, 1,726.38 and 1,085.22 is: 1,497.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251.27 : 1,726.38 = 1,085.22 : x
  2. Step 2: Convert to fraction form
    1,251.27/1,726.38 = 1,085.22/x
  3. Step 3: Cross multiply
    1,251.27x = 1,726.38 × 1,085.22
  4. Step 4: Simplify right side
    1,251.27x = 1,873,502.10
  5. Step 5: Solve for x
    x = 1,873,502.10/1,251.27
  6. Step 6: Final answer
    x = 1,497.28

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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.