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Finding the Fourth Proportional to 3,293.78, 4,940.12 and 1,102.22

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Solution

The fourth proportional to 3,293.78, 4,940.12 and 1,102.22 is: 1,653.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,293.78 : 4,940.12 = 1,102.22 : x
  2. Step 2: Convert to fraction form
    3,293.78/4,940.12 = 1,102.22/x
  3. Step 3: Cross multiply
    3,293.78x = 4,940.12 × 1,102.22
  4. Step 4: Simplify right side
    3,293.78x = 5,445,099.07
  5. Step 5: Solve for x
    x = 5,445,099.07/3,293.78
  6. Step 6: Final answer
    x = 1,653.15

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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.