Home / 3,996.93-5,519.57-3,778.77

Finding the Fourth Proportional to 3,996.93, 5,519.57 and 3,778.77

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Solution

The fourth proportional to 3,996.93, 5,519.57 and 3,778.77 is: 5,218.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,996.93 : 5,519.57 = 3,778.77 : x
  2. Step 2: Convert to fraction form
    3,996.93/5,519.57 = 3,778.77/x
  3. Step 3: Cross multiply
    3,996.93x = 5,519.57 × 3,778.77
  4. Step 4: Simplify right side
    3,996.93x = 20,857,166.64
  5. Step 5: Solve for x
    x = 20,857,166.64/3,996.93
  6. Step 6: Final answer
    x = 5,218.30

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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.