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Finding the Fourth Proportional to 2,661.06, 3,660.06 and 2,135.94

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Solution

The fourth proportional to 2,661.06, 3,660.06 and 2,135.94 is: 2,937.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661.06 : 3,660.06 = 2,135.94 : x
  2. Step 2: Convert to fraction form
    2,661.06/3,660.06 = 2,135.94/x
  3. Step 3: Cross multiply
    2,661.06x = 3,660.06 × 2,135.94
  4. Step 4: Simplify right side
    2,661.06x = 7,817,668.56
  5. Step 5: Solve for x
    x = 7,817,668.56/2,661.06
  6. Step 6: Final answer
    x = 2,937.80

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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.