Home / 3,716.40-5,128.68-2,037.90

Finding the Fourth Proportional to 3,716.40, 5,128.68 and 2,037.90

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Solution

The fourth proportional to 3,716.40, 5,128.68 and 2,037.90 is: 2,812.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,716.40 : 5,128.68 = 2,037.90 : x
  2. Step 2: Convert to fraction form
    3,716.40/5,128.68 = 2,037.90/x
  3. Step 3: Cross multiply
    3,716.40x = 5,128.68 × 2,037.90
  4. Step 4: Simplify right side
    3,716.40x = 10,451,736.97
  5. Step 5: Solve for x
    x = 10,451,736.97/3,716.40
  6. Step 6: Final answer
    x = 2,812.33

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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.