Home / 1,232.40-1,701.27-812.97

Finding the Fourth Proportional to 1,232.40, 1,701.27 and 812.97

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Solution

The fourth proportional to 1,232.40, 1,701.27 and 812.97 is: 1,122.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,232.40 : 1,701.27 = 812.97 : x
  2. Step 2: Convert to fraction form
    1,232.40/1,701.27 = 812.97/x
  3. Step 3: Cross multiply
    1,232.40x = 1,701.27 × 812.97
  4. Step 4: Simplify right side
    1,232.40x = 1,383,081.47
  5. Step 5: Solve for x
    x = 1,383,081.47/1,232.40
  6. Step 6: Final answer
    x = 1,122.27

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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.