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Finding the Fourth Proportional to 1,840.27, 2,759.49 and 670.00

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Solution

The fourth proportional to 1,840.27, 2,759.49 and 670.00 is: 1,004.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,840.27 : 2,759.49 = 670.00 : x
  2. Step 2: Convert to fraction form
    1,840.27/2,759.49 = 670.00/x
  3. Step 3: Cross multiply
    1,840.27x = 2,759.49 × 670.00
  4. Step 4: Simplify right side
    1,840.27x = 1,848,850.70
  5. Step 5: Solve for x
    x = 1,848,850.70/1,840.27
  6. Step 6: Final answer
    x = 1,004.66

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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.