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Finding the Fourth Proportional to 3,957.96, 5,935.68 and 1,324.92

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Solution

The fourth proportional to 3,957.96, 5,935.68 and 1,324.92 is: 1,986.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.96 : 5,935.68 = 1,324.92 : x
  2. Step 2: Convert to fraction form
    3,957.96/5,935.68 = 1,324.92/x
  3. Step 3: Cross multiply
    3,957.96x = 5,935.68 × 1,324.92
  4. Step 4: Simplify right side
    3,957.96x = 7,864,301.15
  5. Step 5: Solve for x
    x = 7,864,301.15/3,957.96
  6. Step 6: Final answer
    x = 1,986.96

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1.5x scale

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.