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Finding the Fourth Proportional to 1,846.06, 2,768.55 and 691.54

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Solution

The fourth proportional to 1,846.06, 2,768.55 and 691.54 is: 1,037.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,846.06 : 2,768.55 = 691.54 : x
  2. Step 2: Convert to fraction form
    1,846.06/2,768.55 = 691.54/x
  3. Step 3: Cross multiply
    1,846.06x = 2,768.55 × 691.54
  4. Step 4: Simplify right side
    1,846.06x = 1,914,563.07
  5. Step 5: Solve for x
    x = 1,914,563.07/1,846.06
  6. Step 6: Final answer
    x = 1,037.11

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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.