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Finding the Fourth Proportional to 4,879.65, 6,733.92 and 2,641.54

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Solution

The fourth proportional to 4,879.65, 6,733.92 and 2,641.54 is: 3,645.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.65 : 6,733.92 = 2,641.54 : x
  2. Step 2: Convert to fraction form
    4,879.65/6,733.92 = 2,641.54/x
  3. Step 3: Cross multiply
    4,879.65x = 6,733.92 × 2,641.54
  4. Step 4: Simplify right side
    4,879.65x = 17,787,917.55
  5. Step 5: Solve for x
    x = 17,787,917.55/4,879.65
  6. Step 6: Final answer
    x = 3,645.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.