Home / 3,971.91-5,477.66-2,479.97

Finding the Fourth Proportional to 3,971.91, 5,477.66 and 2,479.97

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Solution

The fourth proportional to 3,971.91, 5,477.66 and 2,479.97 is: 3,420.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.91 : 5,477.66 = 2,479.97 : x
  2. Step 2: Convert to fraction form
    3,971.91/5,477.66 = 2,479.97/x
  3. Step 3: Cross multiply
    3,971.91x = 5,477.66 × 2,479.97
  4. Step 4: Simplify right side
    3,971.91x = 13,584,432.47
  5. Step 5: Solve for x
    x = 13,584,432.47/3,971.91
  6. Step 6: Final answer
    x = 3,420.13

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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.