Home / 2,517.28-3,473.90-1,398.32

Finding the Fourth Proportional to 2,517.28, 3,473.90 and 1,398.32

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Solution

The fourth proportional to 2,517.28, 3,473.90 and 1,398.32 is: 1,929.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,517.28 : 3,473.90 = 1,398.32 : x
  2. Step 2: Convert to fraction form
    2,517.28/3,473.90 = 1,398.32/x
  3. Step 3: Cross multiply
    2,517.28x = 3,473.90 × 1,398.32
  4. Step 4: Simplify right side
    2,517.28x = 4,857,625.54
  5. Step 5: Solve for x
    x = 4,857,625.54/2,517.28
  6. Step 6: Final answer
    x = 1,929.71

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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.