Home / 3,520.75-4,857.45-2,028.63

Finding the Fourth Proportional to 3,520.75, 4,857.45 and 2,028.63

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Solution

The fourth proportional to 3,520.75, 4,857.45 and 2,028.63 is: 2,798.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.75 : 4,857.45 = 2,028.63 : x
  2. Step 2: Convert to fraction form
    3,520.75/4,857.45 = 2,028.63/x
  3. Step 3: Cross multiply
    3,520.75x = 4,857.45 × 2,028.63
  4. Step 4: Simplify right side
    3,520.75x = 9,853,968.79
  5. Step 5: Solve for x
    x = 9,853,968.79/3,520.75
  6. Step 6: Final answer
    x = 2,798.83

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Half scale
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Double scale
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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.