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Finding the Fourth Proportional to 7,844, 11,766.98 and 2,372

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Solution

The fourth proportional to 7,844, 11,766.98 and 2,372 is: 3,558.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,844 : 11,766.98 = 2,372 : x
  2. Step 2: Convert to fraction form
    7,844/11,766.98 = 2,372/x
  3. Step 3: Cross multiply
    7,844x = 11,766.98 × 2,372
  4. Step 4: Simplify right side
    7,844x = 27,911,276.56
  5. Step 5: Solve for x
    x = 27,911,276.56/7,844
  6. Step 6: Final answer
    x = 3,558.30

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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.