Home / 3,398.55-4,690.41-1,906.19

Finding the Fourth Proportional to 3,398.55, 4,690.41 and 1,906.19

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Solution

The fourth proportional to 3,398.55, 4,690.41 and 1,906.19 is: 2,630.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.55 : 4,690.41 = 1,906.19 : x
  2. Step 2: Convert to fraction form
    3,398.55/4,690.41 = 1,906.19/x
  3. Step 3: Cross multiply
    3,398.55x = 4,690.41 × 1,906.19
  4. Step 4: Simplify right side
    3,398.55x = 8,940,789.19
  5. Step 5: Solve for x
    x = 8,940,789.19/3,398.55
  6. Step 6: Final answer
    x = 2,630.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.