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Finding the Fourth Proportional to 3,511.58, 4,845.43 and 2,019.22

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Solution

The fourth proportional to 3,511.58, 4,845.43 and 2,019.22 is: 2,786.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.58 : 4,845.43 = 2,019.22 : x
  2. Step 2: Convert to fraction form
    3,511.58/4,845.43 = 2,019.22/x
  3. Step 3: Cross multiply
    3,511.58x = 4,845.43 × 2,019.22
  4. Step 4: Simplify right side
    3,511.58x = 9,783,989.16
  5. Step 5: Solve for x
    x = 9,783,989.16/3,511.58
  6. Step 6: Final answer
    x = 2,786.21

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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.