Home / 3,872.43-5,342.96-2,453.58

Finding the Fourth Proportional to 3,872.43, 5,342.96 and 2,453.58

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Solution

The fourth proportional to 3,872.43, 5,342.96 and 2,453.58 is: 3,385.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.43 : 5,342.96 = 2,453.58 : x
  2. Step 2: Convert to fraction form
    3,872.43/5,342.96 = 2,453.58/x
  3. Step 3: Cross multiply
    3,872.43x = 5,342.96 × 2,453.58
  4. Step 4: Simplify right side
    3,872.43x = 13,109,385.93
  5. Step 5: Solve for x
    x = 13,109,385.93/3,872.43
  6. Step 6: Final answer
    x = 3,385.31

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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.