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Finding the Fourth Proportional to 4,163.40, 6,245.10 and 2,519.10

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Solution

The fourth proportional to 4,163.40, 6,245.10 and 2,519.10 is: 3,778.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,163.40 : 6,245.10 = 2,519.10 : x
  2. Step 2: Convert to fraction form
    4,163.40/6,245.10 = 2,519.10/x
  3. Step 3: Cross multiply
    4,163.40x = 6,245.10 × 2,519.10
  4. Step 4: Simplify right side
    4,163.40x = 15,732,031.41
  5. Step 5: Solve for x
    x = 15,732,031.41/4,163.40
  6. Step 6: Final answer
    x = 3,778.65

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.