Home / 5,540.16-7,644.96-3,181.80

Finding the Fourth Proportional to 5,540.16, 7,644.96 and 3,181.80

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Solution

The fourth proportional to 5,540.16, 7,644.96 and 3,181.80 is: 4,390.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.16 : 7,644.96 = 3,181.80 : x
  2. Step 2: Convert to fraction form
    5,540.16/7,644.96 = 3,181.80/x
  3. Step 3: Cross multiply
    5,540.16x = 7,644.96 × 3,181.80
  4. Step 4: Simplify right side
    5,540.16x = 24,324,733.73
  5. Step 5: Solve for x
    x = 24,324,733.73/5,540.16
  6. Step 6: Final answer
    x = 4,390.62

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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.