Home / 3,871.98-5,339.25-2,751.75

Finding the Fourth Proportional to 3,871.98, 5,339.25 and 2,751.75

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Solution

The fourth proportional to 3,871.98, 5,339.25 and 2,751.75 is: 3,794.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.98 : 5,339.25 = 2,751.75 : x
  2. Step 2: Convert to fraction form
    3,871.98/5,339.25 = 2,751.75/x
  3. Step 3: Cross multiply
    3,871.98x = 5,339.25 × 2,751.75
  4. Step 4: Simplify right side
    3,871.98x = 14,692,281.19
  5. Step 5: Solve for x
    x = 14,692,281.19/3,871.98
  6. Step 6: Final answer
    x = 3,794.51

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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.