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Finding the Fourth Proportional to 4,879.09, 6,733.13 and 2,640.95

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Solution

The fourth proportional to 4,879.09, 6,733.13 and 2,640.95 is: 3,644.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.09 : 6,733.13 = 2,640.95 : x
  2. Step 2: Convert to fraction form
    4,879.09/6,733.13 = 2,640.95/x
  3. Step 3: Cross multiply
    4,879.09x = 6,733.13 × 2,640.95
  4. Step 4: Simplify right side
    4,879.09x = 17,781,852.91
  5. Step 5: Solve for x
    x = 17,781,852.91/4,879.09
  6. Step 6: Final answer
    x = 3,644.50

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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.