Home / 3,939.27-5,909.01-1,306.77

Finding the Fourth Proportional to 3,939.27, 5,909.01 and 1,306.77

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Solution

The fourth proportional to 3,939.27, 5,909.01 and 1,306.77 is: 1,960.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.27 : 5,909.01 = 1,306.77 : x
  2. Step 2: Convert to fraction form
    3,939.27/5,909.01 = 1,306.77/x
  3. Step 3: Cross multiply
    3,939.27x = 5,909.01 × 1,306.77
  4. Step 4: Simplify right side
    3,939.27x = 7,721,717.00
  5. Step 5: Solve for x
    x = 7,721,717.00/3,939.27
  6. Step 6: Final answer
    x = 1,960.19

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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.