Home / 2,872.11-3,967.41-2,250.48

Finding the Fourth Proportional to 2,872.11, 3,967.41 and 2,250.48

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Solution

The fourth proportional to 2,872.11, 3,967.41 and 2,250.48 is: 3,108.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.11 : 3,967.41 = 2,250.48 : x
  2. Step 2: Convert to fraction form
    2,872.11/3,967.41 = 2,250.48/x
  3. Step 3: Cross multiply
    2,872.11x = 3,967.41 × 2,250.48
  4. Step 4: Simplify right side
    2,872.11x = 8,928,576.86
  5. Step 5: Solve for x
    x = 8,928,576.86/2,872.11
  6. Step 6: Final answer
    x = 3,108.72

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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.