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Finding the Fourth Proportional to 2,999.52, 4,491.60 and 2,738.40

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Solution

The fourth proportional to 2,999.52, 4,491.60 and 2,738.40 is: 4,100.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.52 : 4,491.60 = 2,738.40 : x
  2. Step 2: Convert to fraction form
    2,999.52/4,491.60 = 2,738.40/x
  3. Step 3: Cross multiply
    2,999.52x = 4,491.60 × 2,738.40
  4. Step 4: Simplify right side
    2,999.52x = 12,299,797.44
  5. Step 5: Solve for x
    x = 12,299,797.44/2,999.52
  6. Step 6: Final answer
    x = 4,100.59

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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.