Home / 7,942.86-11,913.78-3,261.66

Finding the Fourth Proportional to 7,942.86, 11,913.78 and 3,261.66

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Solution

The fourth proportional to 7,942.86, 11,913.78 and 3,261.66 is: 4,892.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.86 : 11,913.78 = 3,261.66 : x
  2. Step 2: Convert to fraction form
    7,942.86/11,913.78 = 3,261.66/x
  3. Step 3: Cross multiply
    7,942.86x = 11,913.78 × 3,261.66
  4. Step 4: Simplify right side
    7,942.86x = 38,858,699.67
  5. Step 5: Solve for x
    x = 38,858,699.67/7,942.86
  6. Step 6: Final answer
    x = 4,892.28

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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.