Home / 3,413.76-5,116.62-1,438.97

Finding the Fourth Proportional to 3,413.76, 5,116.62 and 1,438.97

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Solution

The fourth proportional to 3,413.76, 5,116.62 and 1,438.97 is: 2,156.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.76 : 5,116.62 = 1,438.97 : x
  2. Step 2: Convert to fraction form
    3,413.76/5,116.62 = 1,438.97/x
  3. Step 3: Cross multiply
    3,413.76x = 5,116.62 × 1,438.97
  4. Step 4: Simplify right side
    3,413.76x = 7,362,637.10
  5. Step 5: Solve for x
    x = 7,362,637.10/3,413.76
  6. Step 6: Final answer
    x = 2,156.75

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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.