Home / 4,805.25-7,198.31-3,156.80

Finding the Fourth Proportional to 4,805.25, 7,198.31 and 3,156.80

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Solution

The fourth proportional to 4,805.25, 7,198.31 and 3,156.80 is: 4,728.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,805.25 : 7,198.31 = 3,156.80 : x
  2. Step 2: Convert to fraction form
    4,805.25/7,198.31 = 3,156.80/x
  3. Step 3: Cross multiply
    4,805.25x = 7,198.31 × 3,156.80
  4. Step 4: Simplify right side
    4,805.25x = 22,723,594.96
  5. Step 5: Solve for x
    x = 22,723,594.96/4,805.25
  6. Step 6: Final answer
    x = 4,728.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.