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Finding the Fourth Proportional to 3,149.84, 4,724.76 and 1,418.96

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Solution

The fourth proportional to 3,149.84, 4,724.76 and 1,418.96 is: 2,128.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.84 : 4,724.76 = 1,418.96 : x
  2. Step 2: Convert to fraction form
    3,149.84/4,724.76 = 1,418.96/x
  3. Step 3: Cross multiply
    3,149.84x = 4,724.76 × 1,418.96
  4. Step 4: Simplify right side
    3,149.84x = 6,704,245.45
  5. Step 5: Solve for x
    x = 6,704,245.45/3,149.84
  6. Step 6: Final answer
    x = 2,128.44

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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.