Home / 5,518.62-7,611.84-3,747.15

Finding the Fourth Proportional to 5,518.62, 7,611.84 and 3,747.15

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Solution

The fourth proportional to 5,518.62, 7,611.84 and 3,747.15 is: 5,168.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.62 : 7,611.84 = 3,747.15 : x
  2. Step 2: Convert to fraction form
    5,518.62/7,611.84 = 3,747.15/x
  3. Step 3: Cross multiply
    5,518.62x = 7,611.84 × 3,747.15
  4. Step 4: Simplify right side
    5,518.62x = 28,522,706.26
  5. Step 5: Solve for x
    x = 28,522,706.26/5,518.62
  6. Step 6: Final answer
    x = 5,168.45

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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.