Home / 6,171.45-8,515.66-3,518.73

Finding the Fourth Proportional to 6,171.45, 8,515.66 and 3,518.73

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Solution

The fourth proportional to 6,171.45, 8,515.66 and 3,518.73 is: 4,855.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,171.45 : 8,515.66 = 3,518.73 : x
  2. Step 2: Convert to fraction form
    6,171.45/8,515.66 = 3,518.73/x
  3. Step 3: Cross multiply
    6,171.45x = 8,515.66 × 3,518.73
  4. Step 4: Simplify right side
    6,171.45x = 29,964,308.31
  5. Step 5: Solve for x
    x = 29,964,308.31/6,171.45
  6. Step 6: Final answer
    x = 4,855.31

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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.