Home / 3,879.31-5,817.96-1,413.93

Finding the Fourth Proportional to 3,879.31, 5,817.96 and 1,413.93

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Solution

The fourth proportional to 3,879.31, 5,817.96 and 1,413.93 is: 2,120.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.31 : 5,817.96 = 1,413.93 : x
  2. Step 2: Convert to fraction form
    3,879.31/5,817.96 = 1,413.93/x
  3. Step 3: Cross multiply
    3,879.31x = 5,817.96 × 1,413.93
  4. Step 4: Simplify right side
    3,879.31x = 8,226,188.18
  5. Step 5: Solve for x
    x = 8,226,188.18/3,879.31
  6. Step 6: Final answer
    x = 2,120.53

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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.