Home / 7,115.58-10,671.78-2,185.27

Finding the Fourth Proportional to 7,115.58, 10,671.78 and 2,185.27

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Solution

The fourth proportional to 7,115.58, 10,671.78 and 2,185.27 is: 3,277.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,115.58 : 10,671.78 = 2,185.27 : x
  2. Step 2: Convert to fraction form
    7,115.58/10,671.78 = 2,185.27/x
  3. Step 3: Cross multiply
    7,115.58x = 10,671.78 × 2,185.27
  4. Step 4: Simplify right side
    7,115.58x = 23,320,720.68
  5. Step 5: Solve for x
    x = 23,320,720.68/7,115.58
  6. Step 6: Final answer
    x = 3,277.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.