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Finding the Fourth Proportional to 935.48, 1,399.04 and 701.79

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Solution

The fourth proportional to 935.48, 1,399.04 and 701.79 is: 1,049.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    935.48 : 1,399.04 = 701.79 : x
  2. Step 2: Convert to fraction form
    935.48/1,399.04 = 701.79/x
  3. Step 3: Cross multiply
    935.48x = 1,399.04 × 701.79
  4. Step 4: Simplify right side
    935.48x = 981,834.04
  5. Step 5: Solve for x
    x = 981,834.04/935.48
  6. Step 6: Final answer
    x = 1,049.56

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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.