Home / 5,649.43-7,796.21-3,131.55

Finding the Fourth Proportional to 5,649.43, 7,796.21 and 3,131.55

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Solution

The fourth proportional to 5,649.43, 7,796.21 and 3,131.55 is: 4,321.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,649.43 : 7,796.21 = 3,131.55 : x
  2. Step 2: Convert to fraction form
    5,649.43/7,796.21 = 3,131.55/x
  3. Step 3: Cross multiply
    5,649.43x = 7,796.21 × 3,131.55
  4. Step 4: Simplify right side
    5,649.43x = 24,414,221.43
  5. Step 5: Solve for x
    x = 24,414,221.43/5,649.43
  6. Step 6: Final answer
    x = 4,321.54

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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.