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Finding the Fourth Proportional to 965.32, 1,331.46 and 950.92

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Solution

The fourth proportional to 965.32, 1,331.46 and 950.92 is: 1,311.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    965.32 : 1,331.46 = 950.92 : x
  2. Step 2: Convert to fraction form
    965.32/1,331.46 = 950.92/x
  3. Step 3: Cross multiply
    965.32x = 1,331.46 × 950.92
  4. Step 4: Simplify right side
    965.32x = 1,266,111.94
  5. Step 5: Solve for x
    x = 1,266,111.94/965.32
  6. Step 6: Final answer
    x = 1,311.60

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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.