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Finding the Fourth Proportional to 3,872.22, 5,805.42 and 1,897.24

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Solution

The fourth proportional to 3,872.22, 5,805.42 and 1,897.24 is: 2,844.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.22 : 5,805.42 = 1,897.24 : x
  2. Step 2: Convert to fraction form
    3,872.22/5,805.42 = 1,897.24/x
  3. Step 3: Cross multiply
    3,872.22x = 5,805.42 × 1,897.24
  4. Step 4: Simplify right side
    3,872.22x = 11,014,275.04
  5. Step 5: Solve for x
    x = 11,014,275.04/3,872.22
  6. Step 6: Final answer
    x = 2,844.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.