Home / 5,619.75-7,755.26-3,135.75

Finding the Fourth Proportional to 5,619.75, 7,755.26 and 3,135.75

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Solution

The fourth proportional to 5,619.75, 7,755.26 and 3,135.75 is: 4,327.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.75 : 7,755.26 = 3,135.75 : x
  2. Step 2: Convert to fraction form
    5,619.75/7,755.26 = 3,135.75/x
  3. Step 3: Cross multiply
    5,619.75x = 7,755.26 × 3,135.75
  4. Step 4: Simplify right side
    5,619.75x = 24,318,540.87
  5. Step 5: Solve for x
    x = 24,318,540.87/5,619.75
  6. Step 6: Final answer
    x = 4,327.34

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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.