Home / 3,817.20-5,725.80-2,176.95

Finding the Fourth Proportional to 3,817.20, 5,725.80 and 2,176.95

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Solution

The fourth proportional to 3,817.20, 5,725.80 and 2,176.95 is: 3,265.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,817.20 : 5,725.80 = 2,176.95 : x
  2. Step 2: Convert to fraction form
    3,817.20/5,725.80 = 2,176.95/x
  3. Step 3: Cross multiply
    3,817.20x = 5,725.80 × 2,176.95
  4. Step 4: Simplify right side
    3,817.20x = 12,464,780.31
  5. Step 5: Solve for x
    x = 12,464,780.31/3,817.20
  6. Step 6: Final answer
    x = 3,265.43

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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.