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Finding the Fourth Proportional to 8,825.79, 13,239.96 and 2,984.07

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Solution

The fourth proportional to 8,825.79, 13,239.96 and 2,984.07 is: 4,476.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,825.79 : 13,239.96 = 2,984.07 : x
  2. Step 2: Convert to fraction form
    8,825.79/13,239.96 = 2,984.07/x
  3. Step 3: Cross multiply
    8,825.79x = 13,239.96 × 2,984.07
  4. Step 4: Simplify right side
    8,825.79x = 39,508,967.44
  5. Step 5: Solve for x
    x = 39,508,967.44/8,825.79
  6. Step 6: Final answer
    x = 4,476.54

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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.