Home / 5,515.30-7,611.10-2,997.41

Finding the Fourth Proportional to 5,515.30, 7,611.10 and 2,997.41

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Solution

The fourth proportional to 5,515.30, 7,611.10 and 2,997.41 is: 4,136.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.30 : 7,611.10 = 2,997.41 : x
  2. Step 2: Convert to fraction form
    5,515.30/7,611.10 = 2,997.41/x
  3. Step 3: Cross multiply
    5,515.30x = 7,611.10 × 2,997.41
  4. Step 4: Simplify right side
    5,515.30x = 22,813,558.56
  5. Step 5: Solve for x
    x = 22,813,558.56/5,515.30
  6. Step 6: Final answer
    x = 4,136.42

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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.