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Finding the Fourth Proportional to 3,698.94, 5,098.44 and 2,620.82

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Solution

The fourth proportional to 3,698.94, 5,098.44 and 2,620.82 is: 3,612.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,698.94 : 5,098.44 = 2,620.82 : x
  2. Step 2: Convert to fraction form
    3,698.94/5,098.44 = 2,620.82/x
  3. Step 3: Cross multiply
    3,698.94x = 5,098.44 × 2,620.82
  4. Step 4: Simplify right side
    3,698.94x = 13,362,093.52
  5. Step 5: Solve for x
    x = 13,362,093.52/3,698.94
  6. Step 6: Final answer
    x = 3,612.41

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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.