Home / 4,178.05-6,267.14-1,986.33

Finding the Fourth Proportional to 4,178.05, 6,267.14 and 1,986.33

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Solution

The fourth proportional to 4,178.05, 6,267.14 and 1,986.33 is: 2,979.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,178.05 : 6,267.14 = 1,986.33 : x
  2. Step 2: Convert to fraction form
    4,178.05/6,267.14 = 1,986.33/x
  3. Step 3: Cross multiply
    4,178.05x = 6,267.14 × 1,986.33
  4. Step 4: Simplify right side
    4,178.05x = 12,448,629.22
  5. Step 5: Solve for x
    x = 12,448,629.22/4,178.05
  6. Step 6: Final answer
    x = 2,979.53

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Similar ratio
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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.