Home / 3,519.72-4,856.79-2,028.12

Finding the Fourth Proportional to 3,519.72, 4,856.79 and 2,028.12

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Solution

The fourth proportional to 3,519.72, 4,856.79 and 2,028.12 is: 2,798.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.72 : 4,856.79 = 2,028.12 : x
  2. Step 2: Convert to fraction form
    3,519.72/4,856.79 = 2,028.12/x
  3. Step 3: Cross multiply
    3,519.72x = 4,856.79 × 2,028.12
  4. Step 4: Simplify right side
    3,519.72x = 9,850,152.93
  5. Step 5: Solve for x
    x = 9,850,152.93/3,519.72
  6. Step 6: Final answer
    x = 2,798.56

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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.