Home / 3,198.72-4,414.08-1,782.33

Finding the Fourth Proportional to 3,198.72, 4,414.08 and 1,782.33

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Solution

The fourth proportional to 3,198.72, 4,414.08 and 1,782.33 is: 2,459.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.72 : 4,414.08 = 1,782.33 : x
  2. Step 2: Convert to fraction form
    3,198.72/4,414.08 = 1,782.33/x
  3. Step 3: Cross multiply
    3,198.72x = 4,414.08 × 1,782.33
  4. Step 4: Simplify right side
    3,198.72x = 7,867,347.21
  5. Step 5: Solve for x
    x = 7,867,347.21/3,198.72
  6. Step 6: Final answer
    x = 2,459.53

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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.