Home / 3,398.25-4,689.83-1,886.29

Finding the Fourth Proportional to 3,398.25, 4,689.83 and 1,886.29

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Solution

The fourth proportional to 3,398.25, 4,689.83 and 1,886.29 is: 2,603.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.25 : 4,689.83 = 1,886.29 : x
  2. Step 2: Convert to fraction form
    3,398.25/4,689.83 = 1,886.29/x
  3. Step 3: Cross multiply
    3,398.25x = 4,689.83 × 1,886.29
  4. Step 4: Simplify right side
    3,398.25x = 8,846,398.12
  5. Step 5: Solve for x
    x = 8,846,398.12/3,398.25
  6. Step 6: Final answer
    x = 2,603.22

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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.