Home / 3,968.61-5,464.19-3,369.91

Finding the Fourth Proportional to 3,968.61, 5,464.19 and 3,369.91

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Solution

The fourth proportional to 3,968.61, 5,464.19 and 3,369.91 is: 4,639.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.61 : 5,464.19 = 3,369.91 : x
  2. Step 2: Convert to fraction form
    3,968.61/5,464.19 = 3,369.91/x
  3. Step 3: Cross multiply
    3,968.61x = 5,464.19 × 3,369.91
  4. Step 4: Simplify right side
    3,968.61x = 18,413,828.52
  5. Step 5: Solve for x
    x = 18,413,828.52/3,968.61
  6. Step 6: Final answer
    x = 4,639.87

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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.