Home / 2,229.26-3,325.06-2,100.78

Finding the Fourth Proportional to 2,229.26, 3,325.06 and 2,100.78

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Solution

The fourth proportional to 2,229.26, 3,325.06 and 2,100.78 is: 3,133.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,229.26 : 3,325.06 = 2,100.78 : x
  2. Step 2: Convert to fraction form
    2,229.26/3,325.06 = 2,100.78/x
  3. Step 3: Cross multiply
    2,229.26x = 3,325.06 × 2,100.78
  4. Step 4: Simplify right side
    2,229.26x = 6,985,219.55
  5. Step 5: Solve for x
    x = 6,985,219.55/2,229.26
  6. Step 6: Final answer
    x = 3,133.43

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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.