Home / 5,515.39-7,611.23-2,997.50

Finding the Fourth Proportional to 5,515.39, 7,611.23 and 2,997.50

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Solution

The fourth proportional to 5,515.39, 7,611.23 and 2,997.50 is: 4,136.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.39 : 7,611.23 = 2,997.50 : x
  2. Step 2: Convert to fraction form
    5,515.39/7,611.23 = 2,997.50/x
  3. Step 3: Cross multiply
    5,515.39x = 7,611.23 × 2,997.50
  4. Step 4: Simplify right side
    5,515.39x = 22,814,631.36
  5. Step 5: Solve for x
    x = 22,814,631.36/5,515.39
  6. Step 6: Final answer
    x = 4,136.54

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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.