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Finding the Fourth Proportional to 7,424.79, 11,137.05 and 2,984.41

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Solution

The fourth proportional to 7,424.79, 11,137.05 and 2,984.41 is: 4,476.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,424.79 : 11,137.05 = 2,984.41 : x
  2. Step 2: Convert to fraction form
    7,424.79/11,137.05 = 2,984.41/x
  3. Step 3: Cross multiply
    7,424.79x = 11,137.05 × 2,984.41
  4. Step 4: Simplify right side
    7,424.79x = 33,237,523.39
  5. Step 5: Solve for x
    x = 33,237,523.39/7,424.79
  6. Step 6: Final answer
    x = 4,476.56

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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.