Home / 2,816.94-4,189.62-2,761.68

Finding the Fourth Proportional to 2,816.94, 4,189.62 and 2,761.68

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Solution

The fourth proportional to 2,816.94, 4,189.62 and 2,761.68 is: 4,107.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.94 : 4,189.62 = 2,761.68 : x
  2. Step 2: Convert to fraction form
    2,816.94/4,189.62 = 2,761.68/x
  3. Step 3: Cross multiply
    2,816.94x = 4,189.62 × 2,761.68
  4. Step 4: Simplify right side
    2,816.94x = 11,570,389.76
  5. Step 5: Solve for x
    x = 11,570,389.76/2,816.94
  6. Step 6: Final answer
    x = 4,107.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.