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Finding the Fourth Proportional to 4,984.73, 7,481.72 and 2,521.28

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Solution

The fourth proportional to 4,984.73, 7,481.72 and 2,521.28 is: 3,784.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,984.73 : 7,481.72 = 2,521.28 : x
  2. Step 2: Convert to fraction form
    4,984.73/7,481.72 = 2,521.28/x
  3. Step 3: Cross multiply
    4,984.73x = 7,481.72 × 2,521.28
  4. Step 4: Simplify right side
    4,984.73x = 18,863,498.40
  5. Step 5: Solve for x
    x = 18,863,498.40/4,984.73
  6. Step 6: Final answer
    x = 3,784.26

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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.