Home / 5,721.72-8,573.40-3,249.20

Finding the Fourth Proportional to 5,721.72, 8,573.40 and 3,249.20

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Solution

The fourth proportional to 5,721.72, 8,573.40 and 3,249.20 is: 4,868.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,721.72 : 8,573.40 = 3,249.20 : x
  2. Step 2: Convert to fraction form
    5,721.72/8,573.40 = 3,249.20/x
  3. Step 3: Cross multiply
    5,721.72x = 8,573.40 × 3,249.20
  4. Step 4: Simplify right side
    5,721.72x = 27,856,691.28
  5. Step 5: Solve for x
    x = 27,856,691.28/5,721.72
  6. Step 6: Final answer
    x = 4,868.59

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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.