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Finding the Fourth Proportional to 3,162.33, 4,361.99 and 1,920.33

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Solution

The fourth proportional to 3,162.33, 4,361.99 and 1,920.33 is: 2,648.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,162.33 : 4,361.99 = 1,920.33 : x
  2. Step 2: Convert to fraction form
    3,162.33/4,361.99 = 1,920.33/x
  3. Step 3: Cross multiply
    3,162.33x = 4,361.99 × 1,920.33
  4. Step 4: Simplify right side
    3,162.33x = 8,376,450.66
  5. Step 5: Solve for x
    x = 8,376,450.66/3,162.33
  6. Step 6: Final answer
    x = 2,648.82

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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.