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Finding the Fourth Proportional to 3,480.92, 4,774.26 and 3,292.64

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Solution

The fourth proportional to 3,480.92, 4,774.26 and 3,292.64 is: 4,516.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.92 : 4,774.26 = 3,292.64 : x
  2. Step 2: Convert to fraction form
    3,480.92/4,774.26 = 3,292.64/x
  3. Step 3: Cross multiply
    3,480.92x = 4,774.26 × 3,292.64
  4. Step 4: Simplify right side
    3,480.92x = 15,719,919.45
  5. Step 5: Solve for x
    x = 15,719,919.45/3,480.92
  6. Step 6: Final answer
    x = 4,516.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.