Home / 3,878.18-5,817.50-1,413.26

Finding the Fourth Proportional to 3,878.18, 5,817.50 and 1,413.26

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Solution

The fourth proportional to 3,878.18, 5,817.50 and 1,413.26 is: 2,119.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.18 : 5,817.50 = 1,413.26 : x
  2. Step 2: Convert to fraction form
    3,878.18/5,817.50 = 1,413.26/x
  3. Step 3: Cross multiply
    3,878.18x = 5,817.50 × 1,413.26
  4. Step 4: Simplify right side
    3,878.18x = 8,221,640.05
  5. Step 5: Solve for x
    x = 8,221,640.05/3,878.18
  6. Step 6: Final answer
    x = 2,119.97

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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.