Home / 5,515.43-7,611.25-3,361.36

Finding the Fourth Proportional to 5,515.43, 7,611.25 and 3,361.36

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Solution

The fourth proportional to 5,515.43, 7,611.25 and 3,361.36 is: 4,638.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.43 : 7,611.25 = 3,361.36 : x
  2. Step 2: Convert to fraction form
    5,515.43/7,611.25 = 3,361.36/x
  3. Step 3: Cross multiply
    5,515.43x = 7,611.25 × 3,361.36
  4. Step 4: Simplify right side
    5,515.43x = 25,584,096.44
  5. Step 5: Solve for x
    x = 25,584,096.44/5,515.43
  6. Step 6: Final answer
    x = 4,638.64

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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.