Home / 3,398.81-4,689.77-1,906.52

Finding the Fourth Proportional to 3,398.81, 4,689.77 and 1,906.52

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Solution

The fourth proportional to 3,398.81, 4,689.77 and 1,906.52 is: 2,630.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.81 : 4,689.77 = 1,906.52 : x
  2. Step 2: Convert to fraction form
    3,398.81/4,689.77 = 1,906.52/x
  3. Step 3: Cross multiply
    3,398.81x = 4,689.77 × 1,906.52
  4. Step 4: Simplify right side
    3,398.81x = 8,941,107.32
  5. Step 5: Solve for x
    x = 8,941,107.32/3,398.81
  6. Step 6: Final answer
    x = 2,630.66

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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.