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Finding the Fourth Proportional to 7,819.25, 11,728.88 and 2,347.25

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Solution

The fourth proportional to 7,819.25, 11,728.88 and 2,347.25 is: 3,520.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.25 : 11,728.88 = 2,347.25 : x
  2. Step 2: Convert to fraction form
    7,819.25/11,728.88 = 2,347.25/x
  3. Step 3: Cross multiply
    7,819.25x = 11,728.88 × 2,347.25
  4. Step 4: Simplify right side
    7,819.25x = 27,530,613.58
  5. Step 5: Solve for x
    x = 27,530,613.58/7,819.25
  6. Step 6: Final answer
    x = 3,520.88

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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.