Home / 2,517.82-3,474.36-1,398.63

Finding the Fourth Proportional to 2,517.82, 3,474.36 and 1,398.63

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Solution

The fourth proportional to 2,517.82, 3,474.36 and 1,398.63 is: 1,929.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,517.82 : 3,474.36 = 1,398.63 : x
  2. Step 2: Convert to fraction form
    2,517.82/3,474.36 = 1,398.63/x
  3. Step 3: Cross multiply
    2,517.82x = 3,474.36 × 1,398.63
  4. Step 4: Simplify right side
    2,517.82x = 4,859,357.16
  5. Step 5: Solve for x
    x = 4,859,357.16/2,517.82
  6. Step 6: Final answer
    x = 1,929.99

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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.