Home / 8,979.90-13,469.34-2,739.84

Finding the Fourth Proportional to 8,979.90, 13,469.34 and 2,739.84

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Solution

The fourth proportional to 8,979.90, 13,469.34 and 2,739.84 is: 4,109.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.90 : 13,469.34 = 2,739.84 : x
  2. Step 2: Convert to fraction form
    8,979.90/13,469.34 = 2,739.84/x
  3. Step 3: Cross multiply
    8,979.90x = 13,469.34 × 2,739.84
  4. Step 4: Simplify right side
    8,979.90x = 36,903,836.51
  5. Step 5: Solve for x
    x = 36,903,836.51/8,979.90
  6. Step 6: Final answer
    x = 4,109.60

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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.