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Finding the Fourth Proportional to 1,904.61, 2,855.70 and 733.97

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Solution

The fourth proportional to 1,904.61, 2,855.70 and 733.97 is: 1,100.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,904.61 : 2,855.70 = 733.97 : x
  2. Step 2: Convert to fraction form
    1,904.61/2,855.70 = 733.97/x
  3. Step 3: Cross multiply
    1,904.61x = 2,855.70 × 733.97
  4. Step 4: Simplify right side
    1,904.61x = 2,095,983.85
  5. Step 5: Solve for x
    x = 2,095,983.85/1,904.61
  6. Step 6: Final answer
    x = 1,100.48

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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.