Home / 3,912.84-5,398.16-2,418.17

Finding the Fourth Proportional to 3,912.84, 5,398.16 and 2,418.17

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Solution

The fourth proportional to 3,912.84, 5,398.16 and 2,418.17 is: 3,336.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.84 : 5,398.16 = 2,418.17 : x
  2. Step 2: Convert to fraction form
    3,912.84/5,398.16 = 2,418.17/x
  3. Step 3: Cross multiply
    3,912.84x = 5,398.16 × 2,418.17
  4. Step 4: Simplify right side
    3,912.84x = 13,053,629.49
  5. Step 5: Solve for x
    x = 13,053,629.49/3,912.84
  6. Step 6: Final answer
    x = 3,336.10

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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.