Home / 5,649.76-7,796.70-3,131.96

Finding the Fourth Proportional to 5,649.76, 7,796.70 and 3,131.96

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Solution

The fourth proportional to 5,649.76, 7,796.70 and 3,131.96 is: 4,322.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,649.76 : 7,796.70 = 3,131.96 : x
  2. Step 2: Convert to fraction form
    5,649.76/7,796.70 = 3,131.96/x
  3. Step 3: Cross multiply
    5,649.76x = 7,796.70 × 3,131.96
  4. Step 4: Simplify right side
    5,649.76x = 24,418,952.53
  5. Step 5: Solve for x
    x = 24,418,952.53/5,649.76
  6. Step 6: Final answer
    x = 4,322.12

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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.