Home / 2,081.97-2,871.09-1,768.14

Finding the Fourth Proportional to 2,081.97, 2,871.09 and 1,768.14

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Solution

The fourth proportional to 2,081.97, 2,871.09 and 1,768.14 is: 2,438.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,081.97 : 2,871.09 = 1,768.14 : x
  2. Step 2: Convert to fraction form
    2,081.97/2,871.09 = 1,768.14/x
  3. Step 3: Cross multiply
    2,081.97x = 2,871.09 × 1,768.14
  4. Step 4: Simplify right side
    2,081.97x = 5,076,489.07
  5. Step 5: Solve for x
    x = 5,076,489.07/2,081.97
  6. Step 6: Final answer
    x = 2,438.31

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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.