Home / 3,507.38-4,839.62-2,015.08

Finding the Fourth Proportional to 3,507.38, 4,839.62 and 2,015.08

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Solution

The fourth proportional to 3,507.38, 4,839.62 and 2,015.08 is: 2,780.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,507.38 : 4,839.62 = 2,015.08 : x
  2. Step 2: Convert to fraction form
    3,507.38/4,839.62 = 2,015.08/x
  3. Step 3: Cross multiply
    3,507.38x = 4,839.62 × 2,015.08
  4. Step 4: Simplify right side
    3,507.38x = 9,752,221.47
  5. Step 5: Solve for x
    x = 9,752,221.47/3,507.38
  6. Step 6: Final answer
    x = 2,780.49

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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.