Home / 5,189.48-7,781.64-2,413.88

Finding the Fourth Proportional to 5,189.48, 7,781.64 and 2,413.88

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Solution

The fourth proportional to 5,189.48, 7,781.64 and 2,413.88 is: 3,619.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.48 : 7,781.64 = 2,413.88 : x
  2. Step 2: Convert to fraction form
    5,189.48/7,781.64 = 2,413.88/x
  3. Step 3: Cross multiply
    5,189.48x = 7,781.64 × 2,413.88
  4. Step 4: Simplify right side
    5,189.48x = 18,783,945.16
  5. Step 5: Solve for x
    x = 18,783,945.16/5,189.48
  6. Step 6: Final answer
    x = 3,619.62

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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.