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Finding the Fourth Proportional to 2,586.26, 3,878.79 and 737.33

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Solution

The fourth proportional to 2,586.26, 3,878.79 and 737.33 is: 1,105.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,586.26 : 3,878.79 = 737.33 : x
  2. Step 2: Convert to fraction form
    2,586.26/3,878.79 = 737.33/x
  3. Step 3: Cross multiply
    2,586.26x = 3,878.79 × 737.33
  4. Step 4: Simplify right side
    2,586.26x = 2,859,928.84
  5. Step 5: Solve for x
    x = 2,859,928.84/2,586.26
  6. Step 6: Final answer
    x = 1,105.82

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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.