Home / 3,022.79-4,512.09-2,800.20

Finding the Fourth Proportional to 3,022.79, 4,512.09 and 2,800.20

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Solution

The fourth proportional to 3,022.79, 4,512.09 and 2,800.20 is: 4,179.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,022.79 : 4,512.09 = 2,800.20 : x
  2. Step 2: Convert to fraction form
    3,022.79/4,512.09 = 2,800.20/x
  3. Step 3: Cross multiply
    3,022.79x = 4,512.09 × 2,800.20
  4. Step 4: Simplify right side
    3,022.79x = 12,634,754.42
  5. Step 5: Solve for x
    x = 12,634,754.42/3,022.79
  6. Step 6: Final answer
    x = 4,179.83

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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.