Home / 3,084.11-4,256.31-1,889.09

Finding the Fourth Proportional to 3,084.11, 4,256.31 and 1,889.09

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Solution

The fourth proportional to 3,084.11, 4,256.31 and 1,889.09 is: 2,607.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,084.11 : 4,256.31 = 1,889.09 : x
  2. Step 2: Convert to fraction form
    3,084.11/4,256.31 = 1,889.09/x
  3. Step 3: Cross multiply
    3,084.11x = 4,256.31 × 1,889.09
  4. Step 4: Simplify right side
    3,084.11x = 8,040,531.38
  5. Step 5: Solve for x
    x = 8,040,531.38/3,084.11
  6. Step 6: Final answer
    x = 2,607.09

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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.