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Finding the Fourth Proportional to 4,812.56, 7,213.88 and 1,850.20

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Solution

The fourth proportional to 4,812.56, 7,213.88 and 1,850.20 is: 2,773.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812.56 : 7,213.88 = 1,850.20 : x
  2. Step 2: Convert to fraction form
    4,812.56/7,213.88 = 1,850.20/x
  3. Step 3: Cross multiply
    4,812.56x = 7,213.88 × 1,850.20
  4. Step 4: Simplify right side
    4,812.56x = 13,347,120.78
  5. Step 5: Solve for x
    x = 13,347,120.78/4,812.56
  6. Step 6: Final answer
    x = 2,773.39

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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.