Home / 3,577.14-5,365.80-979.92

Finding the Fourth Proportional to 3,577.14, 5,365.80 and 979.92

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Solution

The fourth proportional to 3,577.14, 5,365.80 and 979.92 is: 1,469.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,577.14 : 5,365.80 = 979.92 : x
  2. Step 2: Convert to fraction form
    3,577.14/5,365.80 = 979.92/x
  3. Step 3: Cross multiply
    3,577.14x = 5,365.80 × 979.92
  4. Step 4: Simplify right side
    3,577.14x = 5,258,054.74
  5. Step 5: Solve for x
    x = 5,258,054.74/3,577.14
  6. Step 6: Final answer
    x = 1,469.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.