Home / 3,431.42-4,735.33-1,939.31

Finding the Fourth Proportional to 3,431.42, 4,735.33 and 1,939.31

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Solution

The fourth proportional to 3,431.42, 4,735.33 and 1,939.31 is: 2,676.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.42 : 4,735.33 = 1,939.31 : x
  2. Step 2: Convert to fraction form
    3,431.42/4,735.33 = 1,939.31/x
  3. Step 3: Cross multiply
    3,431.42x = 4,735.33 × 1,939.31
  4. Step 4: Simplify right side
    3,431.42x = 9,183,272.82
  5. Step 5: Solve for x
    x = 9,183,272.82/3,431.42
  6. Step 6: Final answer
    x = 2,676.23

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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.