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Finding the Fourth Proportional to 952.66, 1,427.82 and 660.88

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Solution

The fourth proportional to 952.66, 1,427.82 and 660.88 is: 990.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.66 : 1,427.82 = 660.88 : x
  2. Step 2: Convert to fraction form
    952.66/1,427.82 = 660.88/x
  3. Step 3: Cross multiply
    952.66x = 1,427.82 × 660.88
  4. Step 4: Simplify right side
    952.66x = 943,617.68
  5. Step 5: Solve for x
    x = 943,617.68/952.66
  6. Step 6: Final answer
    x = 990.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.