Home / 5,515.31-7,611.17-2,997.41

Finding the Fourth Proportional to 5,515.31, 7,611.17 and 2,997.41

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Solution

The fourth proportional to 5,515.31, 7,611.17 and 2,997.41 is: 4,136.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.31 : 7,611.17 = 2,997.41 : x
  2. Step 2: Convert to fraction form
    5,515.31/7,611.17 = 2,997.41/x
  3. Step 3: Cross multiply
    5,515.31x = 7,611.17 × 2,997.41
  4. Step 4: Simplify right side
    5,515.31x = 22,813,797.07
  5. Step 5: Solve for x
    x = 22,813,797.07/5,515.31
  6. Step 6: Final answer
    x = 4,136.45

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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.