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Finding the Fourth Proportional to 4,879.80, 6,734.07 and 2,641.63

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Solution

The fourth proportional to 4,879.80, 6,734.07 and 2,641.63 is: 3,645.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.80 : 6,734.07 = 2,641.63 : x
  2. Step 2: Convert to fraction form
    4,879.80/6,734.07 = 2,641.63/x
  3. Step 3: Cross multiply
    4,879.80x = 6,734.07 × 2,641.63
  4. Step 4: Simplify right side
    4,879.80x = 17,788,921.33
  5. Step 5: Solve for x
    x = 17,788,921.33/4,879.80
  6. Step 6: Final answer
    x = 3,645.42

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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.