Home / 3,520.30-4,857.89-2,028.28

Finding the Fourth Proportional to 3,520.30, 4,857.89 and 2,028.28

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Solution

The fourth proportional to 3,520.30, 4,857.89 and 2,028.28 is: 2,798.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.30 : 4,857.89 = 2,028.28 : x
  2. Step 2: Convert to fraction form
    3,520.30/4,857.89 = 2,028.28/x
  3. Step 3: Cross multiply
    3,520.30x = 4,857.89 × 2,028.28
  4. Step 4: Simplify right side
    3,520.30x = 9,853,161.13
  5. Step 5: Solve for x
    x = 9,853,161.13/3,520.30
  6. Step 6: Final answer
    x = 2,798.95

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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.