Home / 2,517.23-3,473.81-1,398.21

Finding the Fourth Proportional to 2,517.23, 3,473.81 and 1,398.21

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Solution

The fourth proportional to 2,517.23, 3,473.81 and 1,398.21 is: 1,929.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,517.23 : 3,473.81 = 1,398.21 : x
  2. Step 2: Convert to fraction form
    2,517.23/3,473.81 = 1,398.21/x
  3. Step 3: Cross multiply
    2,517.23x = 3,473.81 × 1,398.21
  4. Step 4: Simplify right side
    2,517.23x = 4,857,115.88
  5. Step 5: Solve for x
    x = 4,857,115.88/2,517.23
  6. Step 6: Final answer
    x = 1,929.55

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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.