Home / 3,353.21-4,626.54-2,278.38

Finding the Fourth Proportional to 3,353.21, 4,626.54 and 2,278.38

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Solution

The fourth proportional to 3,353.21, 4,626.54 and 2,278.38 is: 3,143.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,353.21 : 4,626.54 = 2,278.38 : x
  2. Step 2: Convert to fraction form
    3,353.21/4,626.54 = 2,278.38/x
  3. Step 3: Cross multiply
    3,353.21x = 4,626.54 × 2,278.38
  4. Step 4: Simplify right side
    3,353.21x = 10,541,016.21
  5. Step 5: Solve for x
    x = 10,541,016.21/3,353.21
  6. Step 6: Final answer
    x = 3,143.56

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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.