Home / 5,719.68-8,579.52-3,680.64

Finding the Fourth Proportional to 5,719.68, 8,579.52 and 3,680.64

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Solution

The fourth proportional to 5,719.68, 8,579.52 and 3,680.64 is: 5,520.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,719.68 : 8,579.52 = 3,680.64 : x
  2. Step 2: Convert to fraction form
    5,719.68/8,579.52 = 3,680.64/x
  3. Step 3: Cross multiply
    5,719.68x = 8,579.52 × 3,680.64
  4. Step 4: Simplify right side
    5,719.68x = 31,578,124.49
  5. Step 5: Solve for x
    x = 31,578,124.49/5,719.68
  6. Step 6: Final answer
    x = 5,520.96

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Double scale
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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.