Home / 3,413.61-5,118.53-2,180.25

Finding the Fourth Proportional to 3,413.61, 5,118.53 and 2,180.25

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Solution

The fourth proportional to 3,413.61, 5,118.53 and 2,180.25 is: 3,269.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.61 : 5,118.53 = 2,180.25 : x
  2. Step 2: Convert to fraction form
    3,413.61/5,118.53 = 2,180.25/x
  3. Step 3: Cross multiply
    3,413.61x = 5,118.53 × 2,180.25
  4. Step 4: Simplify right side
    3,413.61x = 11,159,664.13
  5. Step 5: Solve for x
    x = 11,159,664.13/3,413.61
  6. Step 6: Final answer
    x = 3,269.17

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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.