Home / 7,884.86-11,826.94-1,961.62

Finding the Fourth Proportional to 7,884.86, 11,826.94 and 1,961.62

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Solution

The fourth proportional to 7,884.86, 11,826.94 and 1,961.62 is: 2,942.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,884.86 : 11,826.94 = 1,961.62 : x
  2. Step 2: Convert to fraction form
    7,884.86/11,826.94 = 1,961.62/x
  3. Step 3: Cross multiply
    7,884.86x = 11,826.94 × 1,961.62
  4. Step 4: Simplify right side
    7,884.86x = 23,199,962.04
  5. Step 5: Solve for x
    x = 23,199,962.04/7,884.86
  6. Step 6: Final answer
    x = 2,942.34

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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.