Home / 3,871.41-5,342.59-2,103.04

Finding the Fourth Proportional to 3,871.41, 5,342.59 and 2,103.04

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Solution

The fourth proportional to 3,871.41, 5,342.59 and 2,103.04 is: 2,902.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.41 : 5,342.59 = 2,103.04 : x
  2. Step 2: Convert to fraction form
    3,871.41/5,342.59 = 2,103.04/x
  3. Step 3: Cross multiply
    3,871.41x = 5,342.59 × 2,103.04
  4. Step 4: Simplify right side
    3,871.41x = 11,235,680.47
  5. Step 5: Solve for x
    x = 11,235,680.47/3,871.41
  6. Step 6: Final answer
    x = 2,902.22

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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.