Home / 5,791.67-7,992.42-3,139.05

Finding the Fourth Proportional to 5,791.67, 7,992.42 and 3,139.05

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Solution

The fourth proportional to 5,791.67, 7,992.42 and 3,139.05 is: 4,331.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,791.67 : 7,992.42 = 3,139.05 : x
  2. Step 2: Convert to fraction form
    5,791.67/7,992.42 = 3,139.05/x
  3. Step 3: Cross multiply
    5,791.67x = 7,992.42 × 3,139.05
  4. Step 4: Simplify right side
    5,791.67x = 25,088,606.00
  5. Step 5: Solve for x
    x = 25,088,606.00/5,791.67
  6. Step 6: Final answer
    x = 4,331.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.