Home / 7,719.91-11,579.86-2,173.25

Finding the Fourth Proportional to 7,719.91, 11,579.86 and 2,173.25

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Solution

The fourth proportional to 7,719.91, 11,579.86 and 2,173.25 is: 3,259.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719.91 : 11,579.86 = 2,173.25 : x
  2. Step 2: Convert to fraction form
    7,719.91/11,579.86 = 2,173.25/x
  3. Step 3: Cross multiply
    7,719.91x = 11,579.86 × 2,173.25
  4. Step 4: Simplify right side
    7,719.91x = 25,165,945.60
  5. Step 5: Solve for x
    x = 25,165,945.60/7,719.91
  6. Step 6: Final answer
    x = 3,259.88

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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.