Home / 5,649.68-7,796.93-3,131.90

Finding the Fourth Proportional to 5,649.68, 7,796.93 and 3,131.90

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Solution

The fourth proportional to 5,649.68, 7,796.93 and 3,131.90 is: 4,322.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,649.68 : 7,796.93 = 3,131.90 : x
  2. Step 2: Convert to fraction form
    5,649.68/7,796.93 = 3,131.90/x
  3. Step 3: Cross multiply
    5,649.68x = 7,796.93 × 3,131.90
  4. Step 4: Simplify right side
    5,649.68x = 24,419,179.66
  5. Step 5: Solve for x
    x = 24,419,179.66/5,649.68
  6. Step 6: Final answer
    x = 4,322.22

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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.