Home / 5,191.47-7,162.94-3,174.36

Finding the Fourth Proportional to 5,191.47, 7,162.94 and 3,174.36

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Solution

The fourth proportional to 5,191.47, 7,162.94 and 3,174.36 is: 4,379.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.47 : 7,162.94 = 3,174.36 : x
  2. Step 2: Convert to fraction form
    5,191.47/7,162.94 = 3,174.36/x
  3. Step 3: Cross multiply
    5,191.47x = 7,162.94 × 3,174.36
  4. Step 4: Simplify right side
    5,191.47x = 22,737,734.35
  5. Step 5: Solve for x
    x = 22,737,734.35/5,191.47
  6. Step 6: Final answer
    x = 4,379.83

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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.