Home / 1,331.14-1,836.52-889.33

Finding the Fourth Proportional to 1,331.14, 1,836.52 and 889.33

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Solution

The fourth proportional to 1,331.14, 1,836.52 and 889.33 is: 1,226.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331.14 : 1,836.52 = 889.33 : x
  2. Step 2: Convert to fraction form
    1,331.14/1,836.52 = 889.33/x
  3. Step 3: Cross multiply
    1,331.14x = 1,836.52 × 889.33
  4. Step 4: Simplify right side
    1,331.14x = 1,633,272.33
  5. Step 5: Solve for x
    x = 1,633,272.33/1,331.14
  6. Step 6: Final answer
    x = 1,226.97

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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.