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Finding the Fourth Proportional to 2,966.09, 4,093.09 and 1,639.76

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Solution

The fourth proportional to 2,966.09, 4,093.09 and 1,639.76 is: 2,262.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,966.09 : 4,093.09 = 1,639.76 : x
  2. Step 2: Convert to fraction form
    2,966.09/4,093.09 = 1,639.76/x
  3. Step 3: Cross multiply
    2,966.09x = 4,093.09 × 1,639.76
  4. Step 4: Simplify right side
    2,966.09x = 6,711,660.69
  5. Step 5: Solve for x
    x = 6,711,660.69/2,966.09
  6. Step 6: Final answer
    x = 2,262.80

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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.