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Finding the Fourth Proportional to 3,256.80, 4,879.08 and 2,914.08

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Solution

The fourth proportional to 3,256.80, 4,879.08 and 2,914.08 is: 4,365.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,256.80 : 4,879.08 = 2,914.08 : x
  2. Step 2: Convert to fraction form
    3,256.80/4,879.08 = 2,914.08/x
  3. Step 3: Cross multiply
    3,256.80x = 4,879.08 × 2,914.08
  4. Step 4: Simplify right side
    3,256.80x = 14,218,029.45
  5. Step 5: Solve for x
    x = 14,218,029.45/3,256.80
  6. Step 6: Final answer
    x = 4,365.64

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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.