Home / 7,719.44-11,579.15-3,105.68

Finding the Fourth Proportional to 7,719.44, 11,579.15 and 3,105.68

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Solution

The fourth proportional to 7,719.44, 11,579.15 and 3,105.68 is: 4,658.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719.44 : 11,579.15 = 3,105.68 : x
  2. Step 2: Convert to fraction form
    7,719.44/11,579.15 = 3,105.68/x
  3. Step 3: Cross multiply
    7,719.44x = 11,579.15 × 3,105.68
  4. Step 4: Simplify right side
    7,719.44x = 35,961,061.15
  5. Step 5: Solve for x
    x = 35,961,061.15/7,719.44
  6. Step 6: Final answer
    x = 4,658.51

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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.