Home / 5,515.32-7,611.15-2,997.47

Finding the Fourth Proportional to 5,515.32, 7,611.15 and 2,997.47

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Solution

The fourth proportional to 5,515.32, 7,611.15 and 2,997.47 is: 4,136.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.32 : 7,611.15 = 2,997.47 : x
  2. Step 2: Convert to fraction form
    5,515.32/7,611.15 = 2,997.47/x
  3. Step 3: Cross multiply
    5,515.32x = 7,611.15 × 2,997.47
  4. Step 4: Simplify right side
    5,515.32x = 22,814,155.73
  5. Step 5: Solve for x
    x = 22,814,155.73/5,515.32
  6. Step 6: Final answer
    x = 4,136.51

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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.