Home / 5,515.18-7,611.02-2,997.34

Finding the Fourth Proportional to 5,515.18, 7,611.02 and 2,997.34

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Solution

The fourth proportional to 5,515.18, 7,611.02 and 2,997.34 is: 4,136.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.18 : 7,611.02 = 2,997.34 : x
  2. Step 2: Convert to fraction form
    5,515.18/7,611.02 = 2,997.34/x
  3. Step 3: Cross multiply
    5,515.18x = 7,611.02 × 2,997.34
  4. Step 4: Simplify right side
    5,515.18x = 22,812,837.31
  5. Step 5: Solve for x
    x = 22,812,837.31/5,515.18
  6. Step 6: Final answer
    x = 4,136.37

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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.