Home / 3,778.50-5,214.33-2,206.61

Finding the Fourth Proportional to 3,778.50, 5,214.33 and 2,206.61

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Solution

The fourth proportional to 3,778.50, 5,214.33 and 2,206.61 is: 3,045.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.50 : 5,214.33 = 2,206.61 : x
  2. Step 2: Convert to fraction form
    3,778.50/5,214.33 = 2,206.61/x
  3. Step 3: Cross multiply
    3,778.50x = 5,214.33 × 2,206.61
  4. Step 4: Simplify right side
    3,778.50x = 11,505,966.65
  5. Step 5: Solve for x
    x = 11,505,966.65/3,778.50
  6. Step 6: Final answer
    x = 3,045.11

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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.