Home / 7,745.42-11,611.98-3,847.70

Finding the Fourth Proportional to 7,745.42, 11,611.98 and 3,847.70

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Solution

The fourth proportional to 7,745.42, 11,611.98 and 3,847.70 is: 5,768.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,745.42 : 11,611.98 = 3,847.70 : x
  2. Step 2: Convert to fraction form
    7,745.42/11,611.98 = 3,847.70/x
  3. Step 3: Cross multiply
    7,745.42x = 11,611.98 × 3,847.70
  4. Step 4: Simplify right side
    7,745.42x = 44,679,415.45
  5. Step 5: Solve for x
    x = 44,679,415.45/7,745.42
  6. Step 6: Final answer
    x = 5,768.49

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.