Home / 3,871.19-5,342.36-2,277.96

Finding the Fourth Proportional to 3,871.19, 5,342.36 and 2,277.96

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Solution

The fourth proportional to 3,871.19, 5,342.36 and 2,277.96 is: 3,143.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.19 : 5,342.36 = 2,277.96 : x
  2. Step 2: Convert to fraction form
    3,871.19/5,342.36 = 2,277.96/x
  3. Step 3: Cross multiply
    3,871.19x = 5,342.36 × 2,277.96
  4. Step 4: Simplify right side
    3,871.19x = 12,169,682.39
  5. Step 5: Solve for x
    x = 12,169,682.39/3,871.19
  6. Step 6: Final answer
    x = 3,143.65

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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.