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Finding the Fourth Proportional to 2,664.01, 3,995.20 and 1,276.63

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Solution

The fourth proportional to 2,664.01, 3,995.20 and 1,276.63 is: 1,914.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,664.01 : 3,995.20 = 1,276.63 : x
  2. Step 2: Convert to fraction form
    2,664.01/3,995.20 = 1,276.63/x
  3. Step 3: Cross multiply
    2,664.01x = 3,995.20 × 1,276.63
  4. Step 4: Simplify right side
    2,664.01x = 5,100,392.18
  5. Step 5: Solve for x
    x = 5,100,392.18/2,664.01
  6. Step 6: Final answer
    x = 1,914.55

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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.