Home / 3,716.36-5,128.78-2,037.72

Finding the Fourth Proportional to 3,716.36, 5,128.78 and 2,037.72

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Solution

The fourth proportional to 3,716.36, 5,128.78 and 2,037.72 is: 2,812.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,716.36 : 5,128.78 = 2,037.72 : x
  2. Step 2: Convert to fraction form
    3,716.36/5,128.78 = 2,037.72/x
  3. Step 3: Cross multiply
    3,716.36x = 5,128.78 × 2,037.72
  4. Step 4: Simplify right side
    3,716.36x = 10,451,017.58
  5. Step 5: Solve for x
    x = 10,451,017.58/3,716.36
  6. Step 6: Final answer
    x = 2,812.17

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1.5x scale

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.