Home / 3,848.31-5,310.66-2,169.72

Finding the Fourth Proportional to 3,848.31, 5,310.66 and 2,169.72

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Solution

The fourth proportional to 3,848.31, 5,310.66 and 2,169.72 is: 2,994.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,848.31 : 5,310.66 = 2,169.72 : x
  2. Step 2: Convert to fraction form
    3,848.31/5,310.66 = 2,169.72/x
  3. Step 3: Cross multiply
    3,848.31x = 5,310.66 × 2,169.72
  4. Step 4: Simplify right side
    3,848.31x = 11,522,645.22
  5. Step 5: Solve for x
    x = 11,522,645.22/3,848.31
  6. Step 6: Final answer
    x = 2,994.21

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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.