Home / 3,159.38-4,729.62-2,279.90

Finding the Fourth Proportional to 3,159.38, 4,729.62 and 2,279.90

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Solution

The fourth proportional to 3,159.38, 4,729.62 and 2,279.90 is: 3,413.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.38 : 4,729.62 = 2,279.90 : x
  2. Step 2: Convert to fraction form
    3,159.38/4,729.62 = 2,279.90/x
  3. Step 3: Cross multiply
    3,159.38x = 4,729.62 × 2,279.90
  4. Step 4: Simplify right side
    3,159.38x = 10,783,060.64
  5. Step 5: Solve for x
    x = 10,783,060.64/3,159.38
  6. Step 6: Final answer
    x = 3,413.03

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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.