Home / 5,686-7,845.54-3,327.64

Finding the Fourth Proportional to 5,686, 7,845.54 and 3,327.64

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Solution

The fourth proportional to 5,686, 7,845.54 and 3,327.64 is: 4,591.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,686 : 7,845.54 = 3,327.64 : x
  2. Step 2: Convert to fraction form
    5,686/7,845.54 = 3,327.64/x
  3. Step 3: Cross multiply
    5,686x = 7,845.54 × 3,327.64
  4. Step 4: Simplify right side
    5,686x = 26,107,132.73
  5. Step 5: Solve for x
    x = 26,107,132.73/5,686
  6. Step 6: Final answer
    x = 4,591.48

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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.