Home / 3,831.54-5,282.88-2,981.04

Finding the Fourth Proportional to 3,831.54, 5,282.88 and 2,981.04

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Solution

The fourth proportional to 3,831.54, 5,282.88 and 2,981.04 is: 4,110.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.54 : 5,282.88 = 2,981.04 : x
  2. Step 2: Convert to fraction form
    3,831.54/5,282.88 = 2,981.04/x
  3. Step 3: Cross multiply
    3,831.54x = 5,282.88 × 2,981.04
  4. Step 4: Simplify right side
    3,831.54x = 15,748,476.60
  5. Step 5: Solve for x
    x = 15,748,476.60/3,831.54
  6. Step 6: Final answer
    x = 4,110.22

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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.