Home / 3,186.61-4,399.32-2,068.54

Finding the Fourth Proportional to 3,186.61, 4,399.32 and 2,068.54

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Solution

The fourth proportional to 3,186.61, 4,399.32 and 2,068.54 is: 2,855.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.61 : 4,399.32 = 2,068.54 : x
  2. Step 2: Convert to fraction form
    3,186.61/4,399.32 = 2,068.54/x
  3. Step 3: Cross multiply
    3,186.61x = 4,399.32 × 2,068.54
  4. Step 4: Simplify right side
    3,186.61x = 9,100,169.39
  5. Step 5: Solve for x
    x = 9,100,169.39/3,186.61
  6. Step 6: Final answer
    x = 2,855.75

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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.