Home / 2,276.50-3,413.94-815.26

Finding the Fourth Proportional to 2,276.50, 3,413.94 and 815.26

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Solution

The fourth proportional to 2,276.50, 3,413.94 and 815.26 is: 1,222.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276.50 : 3,413.94 = 815.26 : x
  2. Step 2: Convert to fraction form
    2,276.50/3,413.94 = 815.26/x
  3. Step 3: Cross multiply
    2,276.50x = 3,413.94 × 815.26
  4. Step 4: Simplify right side
    2,276.50x = 2,783,248.72
  5. Step 5: Solve for x
    x = 2,783,248.72/2,276.50
  6. Step 6: Final answer
    x = 1,222.60

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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.