Home / 3,872.44-5,342.79-2,193.58

Finding the Fourth Proportional to 3,872.44, 5,342.79 and 2,193.58

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Solution

The fourth proportional to 3,872.44, 5,342.79 and 2,193.58 is: 3,026.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.44 : 5,342.79 = 2,193.58 : x
  2. Step 2: Convert to fraction form
    3,872.44/5,342.79 = 2,193.58/x
  3. Step 3: Cross multiply
    3,872.44x = 5,342.79 × 2,193.58
  4. Step 4: Simplify right side
    3,872.44x = 11,719,837.29
  5. Step 5: Solve for x
    x = 11,719,837.29/3,872.44
  6. Step 6: Final answer
    x = 3,026.47

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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.