Home / 3,716.88-5,129.94-2,831.04

Finding the Fourth Proportional to 3,716.88, 5,129.94 and 2,831.04

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Solution

The fourth proportional to 3,716.88, 5,129.94 and 2,831.04 is: 3,907.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,716.88 : 5,129.94 = 2,831.04 : x
  2. Step 2: Convert to fraction form
    3,716.88/5,129.94 = 2,831.04/x
  3. Step 3: Cross multiply
    3,716.88x = 5,129.94 × 2,831.04
  4. Step 4: Simplify right side
    3,716.88x = 14,523,065.34
  5. Step 5: Solve for x
    x = 14,523,065.34/3,716.88
  6. Step 6: Final answer
    x = 3,907.33

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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.