Home / 7,447.24-11,170.85-1,900.58

Finding the Fourth Proportional to 7,447.24, 11,170.85 and 1,900.58

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Solution

The fourth proportional to 7,447.24, 11,170.85 and 1,900.58 is: 2,850.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,447.24 : 11,170.85 = 1,900.58 : x
  2. Step 2: Convert to fraction form
    7,447.24/11,170.85 = 1,900.58/x
  3. Step 3: Cross multiply
    7,447.24x = 11,170.85 × 1,900.58
  4. Step 4: Simplify right side
    7,447.24x = 21,231,150.73
  5. Step 5: Solve for x
    x = 21,231,150.73/7,447.24
  6. Step 6: Final answer
    x = 2,850.87

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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.