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Finding the Fourth Proportional to 982.26, 1,353.29 and 877.37

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Solution

The fourth proportional to 982.26, 1,353.29 and 877.37 is: 1,208.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    982.26 : 1,353.29 = 877.37 : x
  2. Step 2: Convert to fraction form
    982.26/1,353.29 = 877.37/x
  3. Step 3: Cross multiply
    982.26x = 1,353.29 × 877.37
  4. Step 4: Simplify right side
    982.26x = 1,187,324.89
  5. Step 5: Solve for x
    x = 1,187,324.89/982.26
  6. Step 6: Final answer
    x = 1,208.77

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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.