Home / 7,719.67-11,579.42-2,173.02

Finding the Fourth Proportional to 7,719.67, 11,579.42 and 2,173.02

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Solution

The fourth proportional to 7,719.67, 11,579.42 and 2,173.02 is: 3,259.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719.67 : 11,579.42 = 2,173.02 : x
  2. Step 2: Convert to fraction form
    7,719.67/11,579.42 = 2,173.02/x
  3. Step 3: Cross multiply
    7,719.67x = 11,579.42 × 2,173.02
  4. Step 4: Simplify right side
    7,719.67x = 25,162,253.35
  5. Step 5: Solve for x
    x = 25,162,253.35/7,719.67
  6. Step 6: Final answer
    x = 3,259.50

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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.