Home / 3,520.56-4,857.86-2,261.72

Finding the Fourth Proportional to 3,520.56, 4,857.86 and 2,261.72

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Solution

The fourth proportional to 3,520.56, 4,857.86 and 2,261.72 is: 3,120.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.56 : 4,857.86 = 2,261.72 : x
  2. Step 2: Convert to fraction form
    3,520.56/4,857.86 = 2,261.72/x
  3. Step 3: Cross multiply
    3,520.56x = 4,857.86 × 2,261.72
  4. Step 4: Simplify right side
    3,520.56x = 10,987,136.92
  5. Step 5: Solve for x
    x = 10,987,136.92/3,520.56
  6. Step 6: Final answer
    x = 3,120.85

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.