Home / 5,221.58-7,205.69-2,863.80

Finding the Fourth Proportional to 5,221.58, 7,205.69 and 2,863.80

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Solution

The fourth proportional to 5,221.58, 7,205.69 and 2,863.80 is: 3,952.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.58 : 7,205.69 = 2,863.80 : x
  2. Step 2: Convert to fraction form
    5,221.58/7,205.69 = 2,863.80/x
  3. Step 3: Cross multiply
    5,221.58x = 7,205.69 × 2,863.80
  4. Step 4: Simplify right side
    5,221.58x = 20,635,662.18
  5. Step 5: Solve for x
    x = 20,635,662.18/5,221.58
  6. Step 6: Final answer
    x = 3,952.00

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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.