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Finding the Fourth Proportional to 7,874.92, 11,810.22 and 2,942.92

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Solution

The fourth proportional to 7,874.92, 11,810.22 and 2,942.92 is: 4,413.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,874.92 : 11,810.22 = 2,942.92 : x
  2. Step 2: Convert to fraction form
    7,874.92/11,810.22 = 2,942.92/x
  3. Step 3: Cross multiply
    7,874.92x = 11,810.22 × 2,942.92
  4. Step 4: Simplify right side
    7,874.92x = 34,756,532.64
  5. Step 5: Solve for x
    x = 34,756,532.64/7,874.92
  6. Step 6: Final answer
    x = 4,413.57

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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.