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Finding the Fourth Proportional to 3,571.75, 4,928.97 and 2,080.54

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Solution

The fourth proportional to 3,571.75, 4,928.97 and 2,080.54 is: 2,871.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,571.75 : 4,928.97 = 2,080.54 : x
  2. Step 2: Convert to fraction form
    3,571.75/4,928.97 = 2,080.54/x
  3. Step 3: Cross multiply
    3,571.75x = 4,928.97 × 2,080.54
  4. Step 4: Simplify right side
    3,571.75x = 10,254,919.24
  5. Step 5: Solve for x
    x = 10,254,919.24/3,571.75
  6. Step 6: Final answer
    x = 2,871.12

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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.