Home / 3,279.27-4,915.71-2,169.51

Finding the Fourth Proportional to 3,279.27, 4,915.71 and 2,169.51

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Solution

The fourth proportional to 3,279.27, 4,915.71 and 2,169.51 is: 3,252.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.27 : 4,915.71 = 2,169.51 : x
  2. Step 2: Convert to fraction form
    3,279.27/4,915.71 = 2,169.51/x
  3. Step 3: Cross multiply
    3,279.27x = 4,915.71 × 2,169.51
  4. Step 4: Simplify right side
    3,279.27x = 10,664,682.00
  5. Step 5: Solve for x
    x = 10,664,682.00/3,279.27
  6. Step 6: Final answer
    x = 3,252.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.