Home / 5,079.72-7,619.46-2,613.08

Finding the Fourth Proportional to 5,079.72, 7,619.46 and 2,613.08

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Solution

The fourth proportional to 5,079.72, 7,619.46 and 2,613.08 is: 3,919.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.72 : 7,619.46 = 2,613.08 : x
  2. Step 2: Convert to fraction form
    5,079.72/7,619.46 = 2,613.08/x
  3. Step 3: Cross multiply
    5,079.72x = 7,619.46 × 2,613.08
  4. Step 4: Simplify right side
    5,079.72x = 19,910,258.54
  5. Step 5: Solve for x
    x = 19,910,258.54/5,079.72
  6. Step 6: Final answer
    x = 3,919.56

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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.