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Finding the Fourth Proportional to 960.36, 1,325.22 and 610.92

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Solution

The fourth proportional to 960.36, 1,325.22 and 610.92 is: 843.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    960.36 : 1,325.22 = 610.92 : x
  2. Step 2: Convert to fraction form
    960.36/1,325.22 = 610.92/x
  3. Step 3: Cross multiply
    960.36x = 1,325.22 × 610.92
  4. Step 4: Simplify right side
    960.36x = 809,603.40
  5. Step 5: Solve for x
    x = 809,603.40/960.36
  6. Step 6: Final answer
    x = 843.02

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1.5x scale

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.