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Finding the Fourth Proportional to 984.37, 1,350.29 and 963.86

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Solution

The fourth proportional to 984.37, 1,350.29 and 963.86 is: 1,322.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    984.37 : 1,350.29 = 963.86 : x
  2. Step 2: Convert to fraction form
    984.37/1,350.29 = 963.86/x
  3. Step 3: Cross multiply
    984.37x = 1,350.29 × 963.86
  4. Step 4: Simplify right side
    984.37x = 1,301,489.08
  5. Step 5: Solve for x
    x = 1,301,489.08/984.37
  6. Step 6: Final answer
    x = 1,322.16

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.