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Finding the Fourth Proportional to 955.54, 1,319.34 and 745.96

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Solution

The fourth proportional to 955.54, 1,319.34 and 745.96 is: 1,029.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.54 : 1,319.34 = 745.96 : x
  2. Step 2: Convert to fraction form
    955.54/1,319.34 = 745.96/x
  3. Step 3: Cross multiply
    955.54x = 1,319.34 × 745.96
  4. Step 4: Simplify right side
    955.54x = 984,174.87
  5. Step 5: Solve for x
    x = 984,174.87/955.54
  6. Step 6: Final answer
    x = 1,029.97

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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.