Home / 3,831.17-5,748.17-1,981.09

Finding the Fourth Proportional to 3,831.17, 5,748.17 and 1,981.09

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Solution

The fourth proportional to 3,831.17, 5,748.17 and 1,981.09 is: 2,972.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.17 : 5,748.17 = 1,981.09 : x
  2. Step 2: Convert to fraction form
    3,831.17/5,748.17 = 1,981.09/x
  3. Step 3: Cross multiply
    3,831.17x = 5,748.17 × 1,981.09
  4. Step 4: Simplify right side
    3,831.17x = 11,387,639.39
  5. Step 5: Solve for x
    x = 11,387,639.39/3,831.17
  6. Step 6: Final answer
    x = 2,972.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.