Home / 3,871.65-5,339.79-2,546.72

Finding the Fourth Proportional to 3,871.65, 5,339.79 and 2,546.72

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Solution

The fourth proportional to 3,871.65, 5,339.79 and 2,546.72 is: 3,512.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.65 : 5,339.79 = 2,546.72 : x
  2. Step 2: Convert to fraction form
    3,871.65/5,339.79 = 2,546.72/x
  3. Step 3: Cross multiply
    3,871.65x = 5,339.79 × 2,546.72
  4. Step 4: Simplify right side
    3,871.65x = 13,598,923.29
  5. Step 5: Solve for x
    x = 13,598,923.29/3,871.65
  6. Step 6: Final answer
    x = 3,512.44

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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.