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Finding the Fourth Proportional to 3,800.42, 5,244.54 and 2,228.21

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Solution

The fourth proportional to 3,800.42, 5,244.54 and 2,228.21 is: 3,074.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,800.42 : 5,244.54 = 2,228.21 : x
  2. Step 2: Convert to fraction form
    3,800.42/5,244.54 = 2,228.21/x
  3. Step 3: Cross multiply
    3,800.42x = 5,244.54 × 2,228.21
  4. Step 4: Simplify right side
    3,800.42x = 11,685,936.47
  5. Step 5: Solve for x
    x = 11,685,936.47/3,800.42
  6. Step 6: Final answer
    x = 3,074.91

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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.