Home / 2,868.57-4,297.36-1,939.56

Finding the Fourth Proportional to 2,868.57, 4,297.36 and 1,939.56

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Solution

The fourth proportional to 2,868.57, 4,297.36 and 1,939.56 is: 2,905.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,868.57 : 4,297.36 = 1,939.56 : x
  2. Step 2: Convert to fraction form
    2,868.57/4,297.36 = 1,939.56/x
  3. Step 3: Cross multiply
    2,868.57x = 4,297.36 × 1,939.56
  4. Step 4: Simplify right side
    2,868.57x = 8,335,007.05
  5. Step 5: Solve for x
    x = 8,335,007.05/2,868.57
  6. Step 6: Final answer
    x = 2,905.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.