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Finding the Fourth Proportional to 8,984.79, 13,479.24 and 2,745.69

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Solution

The fourth proportional to 8,984.79, 13,479.24 and 2,745.69 is: 4,119.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,984.79 : 13,479.24 = 2,745.69 : x
  2. Step 2: Convert to fraction form
    8,984.79/13,479.24 = 2,745.69/x
  3. Step 3: Cross multiply
    8,984.79x = 13,479.24 × 2,745.69
  4. Step 4: Simplify right side
    8,984.79x = 37,009,788.97
  5. Step 5: Solve for x
    x = 37,009,788.97/8,984.79
  6. Step 6: Final answer
    x = 4,119.16

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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.