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Finding the Fourth Proportional to 3,716.72, 5,128.86 and 2,037.80

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Solution

The fourth proportional to 3,716.72, 5,128.86 and 2,037.80 is: 2,812.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,716.72 : 5,128.86 = 2,037.80 : x
  2. Step 2: Convert to fraction form
    3,716.72/5,128.86 = 2,037.80/x
  3. Step 3: Cross multiply
    3,716.72x = 5,128.86 × 2,037.80
  4. Step 4: Simplify right side
    3,716.72x = 10,451,590.91
  5. Step 5: Solve for x
    x = 10,451,590.91/3,716.72
  6. Step 6: Final answer
    x = 2,812.05

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.