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Finding the Fourth Proportional to 3,134.94, 4,694.94 and 1,815.91

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Solution

The fourth proportional to 3,134.94, 4,694.94 and 1,815.91 is: 2,719.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134.94 : 4,694.94 = 1,815.91 : x
  2. Step 2: Convert to fraction form
    3,134.94/4,694.94 = 1,815.91/x
  3. Step 3: Cross multiply
    3,134.94x = 4,694.94 × 1,815.91
  4. Step 4: Simplify right side
    3,134.94x = 8,525,555.94
  5. Step 5: Solve for x
    x = 8,525,555.94/3,134.94
  6. Step 6: Final answer
    x = 2,719.53

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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.