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Finding the Fourth Proportional to 2,938.12, 4,404.07 and 2,243.28

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Solution

The fourth proportional to 2,938.12, 4,404.07 and 2,243.28 is: 3,362.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.12 : 4,404.07 = 2,243.28 : x
  2. Step 2: Convert to fraction form
    2,938.12/4,404.07 = 2,243.28/x
  3. Step 3: Cross multiply
    2,938.12x = 4,404.07 × 2,243.28
  4. Step 4: Simplify right side
    2,938.12x = 9,879,562.15
  5. Step 5: Solve for x
    x = 9,879,562.15/2,938.12
  6. Step 6: Final answer
    x = 3,362.55

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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.