Home / 8,021.31-12,031.97-2,177.91

Finding the Fourth Proportional to 8,021.31, 12,031.97 and 2,177.91

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Solution

The fourth proportional to 8,021.31, 12,031.97 and 2,177.91 is: 3,266.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,021.31 : 12,031.97 = 2,177.91 : x
  2. Step 2: Convert to fraction form
    8,021.31/12,031.97 = 2,177.91/x
  3. Step 3: Cross multiply
    8,021.31x = 12,031.97 × 2,177.91
  4. Step 4: Simplify right side
    8,021.31x = 26,204,536.89
  5. Step 5: Solve for x
    x = 26,204,536.89/8,021.31
  6. Step 6: Final answer
    x = 3,266.87

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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.