Home / 3,520.51-4,858.46-2,028.76

Finding the Fourth Proportional to 3,520.51, 4,858.46 and 2,028.76

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Solution

The fourth proportional to 3,520.51, 4,858.46 and 2,028.76 is: 2,799.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.51 : 4,858.46 = 2,028.76 : x
  2. Step 2: Convert to fraction form
    3,520.51/4,858.46 = 2,028.76/x
  3. Step 3: Cross multiply
    3,520.51x = 4,858.46 × 2,028.76
  4. Step 4: Simplify right side
    3,520.51x = 9,856,649.31
  5. Step 5: Solve for x
    x = 9,856,649.31/3,520.51
  6. Step 6: Final answer
    x = 2,799.78

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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.