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Finding the Fourth Proportional to 7,400.41, 10,212.78 and 4,043.43

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Solution

The fourth proportional to 7,400.41, 10,212.78 and 4,043.43 is: 5,580.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400.41 : 10,212.78 = 4,043.43 : x
  2. Step 2: Convert to fraction form
    7,400.41/10,212.78 = 4,043.43/x
  3. Step 3: Cross multiply
    7,400.41x = 10,212.78 × 4,043.43
  4. Step 4: Simplify right side
    7,400.41x = 41,294,676.20
  5. Step 5: Solve for x
    x = 41,294,676.20/7,400.41
  6. Step 6: Final answer
    x = 5,580.05

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.