Home / 3,879.30-5,818.37-1,413.54

Finding the Fourth Proportional to 3,879.30, 5,818.37 and 1,413.54

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Solution

The fourth proportional to 3,879.30, 5,818.37 and 1,413.54 is: 2,120.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.30 : 5,818.37 = 1,413.54 : x
  2. Step 2: Convert to fraction form
    3,879.30/5,818.37 = 1,413.54/x
  3. Step 3: Cross multiply
    3,879.30x = 5,818.37 × 1,413.54
  4. Step 4: Simplify right side
    3,879.30x = 8,224,502.26
  5. Step 5: Solve for x
    x = 8,224,502.26/3,879.30
  6. Step 6: Final answer
    x = 2,120.10

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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.