Home / 3,398.41-4,689.74-1,906.33

Finding the Fourth Proportional to 3,398.41, 4,689.74 and 1,906.33

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Solution

The fourth proportional to 3,398.41, 4,689.74 and 1,906.33 is: 2,630.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.41 : 4,689.74 = 1,906.33 : x
  2. Step 2: Convert to fraction form
    3,398.41/4,689.74 = 1,906.33/x
  3. Step 3: Cross multiply
    3,398.41x = 4,689.74 × 1,906.33
  4. Step 4: Simplify right side
    3,398.41x = 8,940,192.05
  5. Step 5: Solve for x
    x = 8,940,192.05/3,398.41
  6. Step 6: Final answer
    x = 2,630.70

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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.