Home / 3,413.72-5,127.70-2,894.78

Finding the Fourth Proportional to 3,413.72, 5,127.70 and 2,894.78

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Solution

The fourth proportional to 3,413.72, 5,127.70 and 2,894.78 is: 4,348.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.72 : 5,127.70 = 2,894.78 : x
  2. Step 2: Convert to fraction form
    3,413.72/5,127.70 = 2,894.78/x
  3. Step 3: Cross multiply
    3,413.72x = 5,127.70 × 2,894.78
  4. Step 4: Simplify right side
    3,413.72x = 14,843,563.41
  5. Step 5: Solve for x
    x = 14,843,563.41/3,413.72
  6. Step 6: Final answer
    x = 4,348.21

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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.