Home / 7,819.79-11,729.68-2,629.31

Finding the Fourth Proportional to 7,819.79, 11,729.68 and 2,629.31

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Solution

The fourth proportional to 7,819.79, 11,729.68 and 2,629.31 is: 3,943.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.79 : 11,729.68 = 2,629.31 : x
  2. Step 2: Convert to fraction form
    7,819.79/11,729.68 = 2,629.31/x
  3. Step 3: Cross multiply
    7,819.79x = 11,729.68 × 2,629.31
  4. Step 4: Simplify right side
    7,819.79x = 30,840,899.70
  5. Step 5: Solve for x
    x = 30,840,899.70/7,819.79
  6. Step 6: Final answer
    x = 3,943.96

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Similar ratio
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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.