Home / 5,120.44-7,680.39-2,522.50

Finding the Fourth Proportional to 5,120.44, 7,680.39 and 2,522.50

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Solution

The fourth proportional to 5,120.44, 7,680.39 and 2,522.50 is: 3,783.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.44 : 7,680.39 = 2,522.50 : x
  2. Step 2: Convert to fraction form
    5,120.44/7,680.39 = 2,522.50/x
  3. Step 3: Cross multiply
    5,120.44x = 7,680.39 × 2,522.50
  4. Step 4: Simplify right side
    5,120.44x = 19,373,783.78
  5. Step 5: Solve for x
    x = 19,373,783.78/5,120.44
  6. Step 6: Final answer
    x = 3,783.62

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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.