Home / 3,979.20-5,968.80-2,516.34

Finding the Fourth Proportional to 3,979.20, 5,968.80 and 2,516.34

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Solution

The fourth proportional to 3,979.20, 5,968.80 and 2,516.34 is: 3,774.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.20 : 5,968.80 = 2,516.34 : x
  2. Step 2: Convert to fraction form
    3,979.20/5,968.80 = 2,516.34/x
  3. Step 3: Cross multiply
    3,979.20x = 5,968.80 × 2,516.34
  4. Step 4: Simplify right side
    3,979.20x = 15,019,530.19
  5. Step 5: Solve for x
    x = 15,019,530.19/3,979.20
  6. Step 6: Final answer
    x = 3,774.51

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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.