Home / 3,994.38-5,511.24-2,422.20

Finding the Fourth Proportional to 3,994.38, 5,511.24 and 2,422.20

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Solution

The fourth proportional to 3,994.38, 5,511.24 and 2,422.20 is: 3,342.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994.38 : 5,511.24 = 2,422.20 : x
  2. Step 2: Convert to fraction form
    3,994.38/5,511.24 = 2,422.20/x
  3. Step 3: Cross multiply
    3,994.38x = 5,511.24 × 2,422.20
  4. Step 4: Simplify right side
    3,994.38x = 13,349,325.53
  5. Step 5: Solve for x
    x = 13,349,325.53/3,994.38
  6. Step 6: Final answer
    x = 3,342.03

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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.