Home / 2,880.27-3,975.75-1,997.24

Finding the Fourth Proportional to 2,880.27, 3,975.75 and 1,997.24

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Solution

The fourth proportional to 2,880.27, 3,975.75 and 1,997.24 is: 2,756.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.27 : 3,975.75 = 1,997.24 : x
  2. Step 2: Convert to fraction form
    2,880.27/3,975.75 = 1,997.24/x
  3. Step 3: Cross multiply
    2,880.27x = 3,975.75 × 1,997.24
  4. Step 4: Simplify right side
    2,880.27x = 7,940,507.05
  5. Step 5: Solve for x
    x = 7,940,507.05/2,880.27
  6. Step 6: Final answer
    x = 2,756.86

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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.