Home / 7,217.82-9,961.50-4,074.66

Finding the Fourth Proportional to 7,217.82, 9,961.50 and 4,074.66

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Solution

The fourth proportional to 7,217.82, 9,961.50 and 4,074.66 is: 5,623.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217.82 : 9,961.50 = 4,074.66 : x
  2. Step 2: Convert to fraction form
    7,217.82/9,961.50 = 4,074.66/x
  3. Step 3: Cross multiply
    7,217.82x = 9,961.50 × 4,074.66
  4. Step 4: Simplify right side
    7,217.82x = 40,589,725.59
  5. Step 5: Solve for x
    x = 40,589,725.59/7,217.82
  6. Step 6: Final answer
    x = 5,623.54

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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.