Home / 7,191.25-10,789.47-2,511.95

Finding the Fourth Proportional to 7,191.25, 10,789.47 and 2,511.95

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Solution

The fourth proportional to 7,191.25, 10,789.47 and 2,511.95 is: 3,768.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,191.25 : 10,789.47 = 2,511.95 : x
  2. Step 2: Convert to fraction form
    7,191.25/10,789.47 = 2,511.95/x
  3. Step 3: Cross multiply
    7,191.25x = 10,789.47 × 2,511.95
  4. Step 4: Simplify right side
    7,191.25x = 27,102,542.66
  5. Step 5: Solve for x
    x = 27,102,542.66/7,191.25
  6. Step 6: Final answer
    x = 3,768.82

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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.