Home / 3,981.43-5,494.68-2,388.14

Finding the Fourth Proportional to 3,981.43, 5,494.68 and 2,388.14

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Solution

The fourth proportional to 3,981.43, 5,494.68 and 2,388.14 is: 3,295.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.43 : 5,494.68 = 2,388.14 : x
  2. Step 2: Convert to fraction form
    3,981.43/5,494.68 = 2,388.14/x
  3. Step 3: Cross multiply
    3,981.43x = 5,494.68 × 2,388.14
  4. Step 4: Simplify right side
    3,981.43x = 13,122,080.40
  5. Step 5: Solve for x
    x = 13,122,080.40/3,981.43
  6. Step 6: Final answer
    x = 3,295.82

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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.