Home / 5,221.53-7,205.72-2,863.80

Finding the Fourth Proportional to 5,221.53, 7,205.72 and 2,863.80

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Solution

The fourth proportional to 5,221.53, 7,205.72 and 2,863.80 is: 3,952.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.53 : 7,205.72 = 2,863.80 : x
  2. Step 2: Convert to fraction form
    5,221.53/7,205.72 = 2,863.80/x
  3. Step 3: Cross multiply
    5,221.53x = 7,205.72 × 2,863.80
  4. Step 4: Simplify right side
    5,221.53x = 20,635,726.62
  5. Step 5: Solve for x
    x = 20,635,726.62/5,221.53
  6. Step 6: Final answer
    x = 3,952.05

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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.