Home / 3,864.27-5,791.92-1,779.90

Finding the Fourth Proportional to 3,864.27, 5,791.92 and 1,779.90

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Solution

The fourth proportional to 3,864.27, 5,791.92 and 1,779.90 is: 2,667.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,864.27 : 5,791.92 = 1,779.90 : x
  2. Step 2: Convert to fraction form
    3,864.27/5,791.92 = 1,779.90/x
  3. Step 3: Cross multiply
    3,864.27x = 5,791.92 × 1,779.90
  4. Step 4: Simplify right side
    3,864.27x = 10,309,038.41
  5. Step 5: Solve for x
    x = 10,309,038.41/3,864.27
  6. Step 6: Final answer
    x = 2,667.78

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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.