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Finding the Fourth Proportional to 7,608.71, 11,413.58 and 2,678.73

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Solution

The fourth proportional to 7,608.71, 11,413.58 and 2,678.73 is: 4,018.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,608.71 : 11,413.58 = 2,678.73 : x
  2. Step 2: Convert to fraction form
    7,608.71/11,413.58 = 2,678.73/x
  3. Step 3: Cross multiply
    7,608.71x = 11,413.58 × 2,678.73
  4. Step 4: Simplify right side
    7,608.71x = 30,573,928.86
  5. Step 5: Solve for x
    x = 30,573,928.86/7,608.71
  6. Step 6: Final answer
    x = 4,018.28

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1.5x scale

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.