Home / 3,450.72-4,761.82-1,958.78

Finding the Fourth Proportional to 3,450.72, 4,761.82 and 1,958.78

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Solution

The fourth proportional to 3,450.72, 4,761.82 and 1,958.78 is: 2,703.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,450.72 : 4,761.82 = 1,958.78 : x
  2. Step 2: Convert to fraction form
    3,450.72/4,761.82 = 1,958.78/x
  3. Step 3: Cross multiply
    3,450.72x = 4,761.82 × 1,958.78
  4. Step 4: Simplify right side
    3,450.72x = 9,327,357.78
  5. Step 5: Solve for x
    x = 9,327,357.78/3,450.72
  6. Step 6: Final answer
    x = 2,703.02

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1.5x scale

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.