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Finding the Fourth Proportional to 3,956.79, 5,935.38 and 1,324.53

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Solution

The fourth proportional to 3,956.79, 5,935.38 and 1,324.53 is: 1,986.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.79 : 5,935.38 = 1,324.53 : x
  2. Step 2: Convert to fraction form
    3,956.79/5,935.38 = 1,324.53/x
  3. Step 3: Cross multiply
    3,956.79x = 5,935.38 × 1,324.53
  4. Step 4: Simplify right side
    3,956.79x = 7,861,588.87
  5. Step 5: Solve for x
    x = 7,861,588.87/3,956.79
  6. Step 6: Final answer
    x = 1,986.86

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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.