Home / 3,074.29-4,242.14-1,939.53

Finding the Fourth Proportional to 3,074.29, 4,242.14 and 1,939.53

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Solution

The fourth proportional to 3,074.29, 4,242.14 and 1,939.53 is: 2,676.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,074.29 : 4,242.14 = 1,939.53 : x
  2. Step 2: Convert to fraction form
    3,074.29/4,242.14 = 1,939.53/x
  3. Step 3: Cross multiply
    3,074.29x = 4,242.14 × 1,939.53
  4. Step 4: Simplify right side
    3,074.29x = 8,227,738.98
  5. Step 5: Solve for x
    x = 8,227,738.98/3,074.29
  6. Step 6: Final answer
    x = 2,676.31

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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.