Home / 3,848.20-5,767.80-2,206.30

Finding the Fourth Proportional to 3,848.20, 5,767.80 and 2,206.30

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Solution

The fourth proportional to 3,848.20, 5,767.80 and 2,206.30 is: 3,306.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,848.20 : 5,767.80 = 2,206.30 : x
  2. Step 2: Convert to fraction form
    3,848.20/5,767.80 = 2,206.30/x
  3. Step 3: Cross multiply
    3,848.20x = 5,767.80 × 2,206.30
  4. Step 4: Simplify right side
    3,848.20x = 12,725,497.14
  5. Step 5: Solve for x
    x = 12,725,497.14/3,848.20
  6. Step 6: Final answer
    x = 3,306.87

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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.