Home / 3,181.14-4,389.96-1,939.14

Finding the Fourth Proportional to 3,181.14, 4,389.96 and 1,939.14

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Solution

The fourth proportional to 3,181.14, 4,389.96 and 1,939.14 is: 2,676.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.14 : 4,389.96 = 1,939.14 : x
  2. Step 2: Convert to fraction form
    3,181.14/4,389.96 = 1,939.14/x
  3. Step 3: Cross multiply
    3,181.14x = 4,389.96 × 1,939.14
  4. Step 4: Simplify right side
    3,181.14x = 8,512,747.03
  5. Step 5: Solve for x
    x = 8,512,747.03/3,181.14
  6. Step 6: Final answer
    x = 2,676.01

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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.