Home / 3,520.89-4,857.60-2,261.85

Finding the Fourth Proportional to 3,520.89, 4,857.60 and 2,261.85

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Solution

The fourth proportional to 3,520.89, 4,857.60 and 2,261.85 is: 3,120.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.89 : 4,857.60 = 2,261.85 : x
  2. Step 2: Convert to fraction form
    3,520.89/4,857.60 = 2,261.85/x
  3. Step 3: Cross multiply
    3,520.89x = 4,857.60 × 2,261.85
  4. Step 4: Simplify right side
    3,520.89x = 10,987,162.56
  5. Step 5: Solve for x
    x = 10,987,162.56/3,520.89
  6. Step 6: Final answer
    x = 3,120.56

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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.