Home / 4,028.38-5,555.22-3,143.86

Finding the Fourth Proportional to 4,028.38, 5,555.22 and 3,143.86

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Solution

The fourth proportional to 4,028.38, 5,555.22 and 3,143.86 is: 4,335.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,028.38 : 5,555.22 = 3,143.86 : x
  2. Step 2: Convert to fraction form
    4,028.38/5,555.22 = 3,143.86/x
  3. Step 3: Cross multiply
    4,028.38x = 5,555.22 × 3,143.86
  4. Step 4: Simplify right side
    4,028.38x = 17,464,833.95
  5. Step 5: Solve for x
    x = 17,464,833.95/4,028.38
  6. Step 6: Final answer
    x = 4,335.45

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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.