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Finding the Fourth Proportional to 982.24, 1,355.07 and 832.22

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Solution

The fourth proportional to 982.24, 1,355.07 and 832.22 is: 1,148.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    982.24 : 1,355.07 = 832.22 : x
  2. Step 2: Convert to fraction form
    982.24/1,355.07 = 832.22/x
  3. Step 3: Cross multiply
    982.24x = 1,355.07 × 832.22
  4. Step 4: Simplify right side
    982.24x = 1,127,716.36
  5. Step 5: Solve for x
    x = 1,127,716.36/982.24
  6. Step 6: Final answer
    x = 1,148.11

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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.