Home / 7,719.71-11,579.56-2,173.64

Finding the Fourth Proportional to 7,719.71, 11,579.56 and 2,173.64

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Solution

The fourth proportional to 7,719.71, 11,579.56 and 2,173.64 is: 3,260.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719.71 : 11,579.56 = 2,173.64 : x
  2. Step 2: Convert to fraction form
    7,719.71/11,579.56 = 2,173.64/x
  3. Step 3: Cross multiply
    7,719.71x = 11,579.56 × 2,173.64
  4. Step 4: Simplify right side
    7,719.71x = 25,169,731.47
  5. Step 5: Solve for x
    x = 25,169,731.47/7,719.71
  6. Step 6: Final answer
    x = 3,260.45

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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.