Home / 5,191.11-7,790.42-2,069.31

Finding the Fourth Proportional to 5,191.11, 7,790.42 and 2,069.31

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Solution

The fourth proportional to 5,191.11, 7,790.42 and 2,069.31 is: 3,105.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.11 : 7,790.42 = 2,069.31 : x
  2. Step 2: Convert to fraction form
    5,191.11/7,790.42 = 2,069.31/x
  3. Step 3: Cross multiply
    5,191.11x = 7,790.42 × 2,069.31
  4. Step 4: Simplify right side
    5,191.11x = 16,120,783.66
  5. Step 5: Solve for x
    x = 16,120,783.66/5,191.11
  6. Step 6: Final answer
    x = 3,105.46

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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.