Home / 6,791.61-10,188.89-2,111.54

Finding the Fourth Proportional to 6,791.61, 10,188.89 and 2,111.54

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Solution

The fourth proportional to 6,791.61, 10,188.89 and 2,111.54 is: 3,167.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,791.61 : 10,188.89 = 2,111.54 : x
  2. Step 2: Convert to fraction form
    6,791.61/10,188.89 = 2,111.54/x
  3. Step 3: Cross multiply
    6,791.61x = 10,188.89 × 2,111.54
  4. Step 4: Simplify right side
    6,791.61x = 21,514,195.21
  5. Step 5: Solve for x
    x = 21,514,195.21/6,791.61
  6. Step 6: Final answer
    x = 3,167.76

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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.