Home / 2,922.90-4,381.25-1,361.09

Finding the Fourth Proportional to 2,922.90, 4,381.25 and 1,361.09

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Solution

The fourth proportional to 2,922.90, 4,381.25 and 1,361.09 is: 2,040.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.90 : 4,381.25 = 1,361.09 : x
  2. Step 2: Convert to fraction form
    2,922.90/4,381.25 = 1,361.09/x
  3. Step 3: Cross multiply
    2,922.90x = 4,381.25 × 1,361.09
  4. Step 4: Simplify right side
    2,922.90x = 5,963,246.85
  5. Step 5: Solve for x
    x = 5,963,246.85/2,922.90
  6. Step 6: Final answer
    x = 2,040.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.