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Finding the Fourth Proportional to 3,106.56, 4,660.56 and 1,645.38

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Solution

The fourth proportional to 3,106.56, 4,660.56 and 1,645.38 is: 2,468.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.56 : 4,660.56 = 1,645.38 : x
  2. Step 2: Convert to fraction form
    3,106.56/4,660.56 = 1,645.38/x
  3. Step 3: Cross multiply
    3,106.56x = 4,660.56 × 1,645.38
  4. Step 4: Simplify right side
    3,106.56x = 7,668,392.21
  5. Step 5: Solve for x
    x = 7,668,392.21/3,106.56
  6. Step 6: Final answer
    x = 2,468.45

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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.