Home / 7,191.30-10,791.87-2,511.31

Finding the Fourth Proportional to 7,191.30, 10,791.87 and 2,511.31

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Solution

The fourth proportional to 7,191.30, 10,791.87 and 2,511.31 is: 3,768.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,191.30 : 10,791.87 = 2,511.31 : x
  2. Step 2: Convert to fraction form
    7,191.30/10,791.87 = 2,511.31/x
  3. Step 3: Cross multiply
    7,191.30x = 10,791.87 × 2,511.31
  4. Step 4: Simplify right side
    7,191.30x = 27,101,677.09
  5. Step 5: Solve for x
    x = 27,101,677.09/7,191.30
  6. Step 6: Final answer
    x = 3,768.68

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1.5x scale

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.