Home / 5,221.31-7,205.74-2,863.44

Finding the Fourth Proportional to 5,221.31, 7,205.74 and 2,863.44

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Solution

The fourth proportional to 5,221.31, 7,205.74 and 2,863.44 is: 3,951.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.31 : 7,205.74 = 2,863.44 : x
  2. Step 2: Convert to fraction form
    5,221.31/7,205.74 = 2,863.44/x
  3. Step 3: Cross multiply
    5,221.31x = 7,205.74 × 2,863.44
  4. Step 4: Simplify right side
    5,221.31x = 20,633,196.99
  5. Step 5: Solve for x
    x = 20,633,196.99/5,221.31
  6. Step 6: Final answer
    x = 3,951.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.