Home / 3,778.07-5,669.39-2,691.47

Finding the Fourth Proportional to 3,778.07, 5,669.39 and 2,691.47

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Solution

The fourth proportional to 3,778.07, 5,669.39 and 2,691.47 is: 4,038.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.07 : 5,669.39 = 2,691.47 : x
  2. Step 2: Convert to fraction form
    3,778.07/5,669.39 = 2,691.47/x
  3. Step 3: Cross multiply
    3,778.07x = 5,669.39 × 2,691.47
  4. Step 4: Simplify right side
    3,778.07x = 15,258,979.65
  5. Step 5: Solve for x
    x = 15,258,979.65/3,778.07
  6. Step 6: Final answer
    x = 4,038.83

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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.