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Finding the Fourth Proportional to 3,488.92, 5,206.84 and 3,255.64

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Solution

The fourth proportional to 3,488.92, 5,206.84 and 3,255.64 is: 4,858.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,488.92 : 5,206.84 = 3,255.64 : x
  2. Step 2: Convert to fraction form
    3,488.92/5,206.84 = 3,255.64/x
  3. Step 3: Cross multiply
    3,488.92x = 5,206.84 × 3,255.64
  4. Step 4: Simplify right side
    3,488.92x = 16,951,596.58
  5. Step 5: Solve for x
    x = 16,951,596.58/3,488.92
  6. Step 6: Final answer
    x = 4,858.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.