Home / 7,738.80-11,611.56-3,840.96

Finding the Fourth Proportional to 7,738.80, 11,611.56 and 3,840.96

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Solution

The fourth proportional to 7,738.80, 11,611.56 and 3,840.96 is: 5,763.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.80 : 11,611.56 = 3,840.96 : x
  2. Step 2: Convert to fraction form
    7,738.80/11,611.56 = 3,840.96/x
  3. Step 3: Cross multiply
    7,738.80x = 11,611.56 × 3,840.96
  4. Step 4: Simplify right side
    7,738.80x = 44,599,537.50
  5. Step 5: Solve for x
    x = 44,599,537.50/7,738.80
  6. Step 6: Final answer
    x = 5,763.11

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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.