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Finding the Fourth Proportional to 7,881.44, 11,820.72 and 2,333.48

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Solution

The fourth proportional to 7,881.44, 11,820.72 and 2,333.48 is: 3,499.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.44 : 11,820.72 = 2,333.48 : x
  2. Step 2: Convert to fraction form
    7,881.44/11,820.72 = 2,333.48/x
  3. Step 3: Cross multiply
    7,881.44x = 11,820.72 × 2,333.48
  4. Step 4: Simplify right side
    7,881.44x = 27,583,413.71
  5. Step 5: Solve for x
    x = 27,583,413.71/7,881.44
  6. Step 6: Final answer
    x = 3,499.79

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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.