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Finding the Fourth Proportional to 4,811.39, 7,212.45 and 1,522.22

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Solution

The fourth proportional to 4,811.39, 7,212.45 and 1,522.22 is: 2,281.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.39 : 7,212.45 = 1,522.22 : x
  2. Step 2: Convert to fraction form
    4,811.39/7,212.45 = 1,522.22/x
  3. Step 3: Cross multiply
    4,811.39x = 7,212.45 × 1,522.22
  4. Step 4: Simplify right side
    4,811.39x = 10,978,899.58
  5. Step 5: Solve for x
    x = 10,978,899.58/4,811.39
  6. Step 6: Final answer
    x = 2,281.86

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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.