Home / 7,388.20-11,083.74-2,194.12

Finding the Fourth Proportional to 7,388.20, 11,083.74 and 2,194.12

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Solution

The fourth proportional to 7,388.20, 11,083.74 and 2,194.12 is: 3,291.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,388.20 : 11,083.74 = 2,194.12 : x
  2. Step 2: Convert to fraction form
    7,388.20/11,083.74 = 2,194.12/x
  3. Step 3: Cross multiply
    7,388.20x = 11,083.74 × 2,194.12
  4. Step 4: Simplify right side
    7,388.20x = 24,319,055.61
  5. Step 5: Solve for x
    x = 24,319,055.61/7,388.20
  6. Step 6: Final answer
    x = 3,291.61

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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.