Home / 5,221.59-7,205.82-2,863.74

Finding the Fourth Proportional to 5,221.59, 7,205.82 and 2,863.74

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Solution

The fourth proportional to 5,221.59, 7,205.82 and 2,863.74 is: 3,951.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.59 : 7,205.82 = 2,863.74 : x
  2. Step 2: Convert to fraction form
    5,221.59/7,205.82 = 2,863.74/x
  3. Step 3: Cross multiply
    5,221.59x = 7,205.82 × 2,863.74
  4. Step 4: Simplify right side
    5,221.59x = 20,635,594.97
  5. Step 5: Solve for x
    x = 20,635,594.97/5,221.59
  6. Step 6: Final answer
    x = 3,951.98

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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.