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Finding the Fourth Proportional to 1,827.23, 2,739.65 and 656.65

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Solution

The fourth proportional to 1,827.23, 2,739.65 and 656.65 is: 984.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,827.23 : 2,739.65 = 656.65 : x
  2. Step 2: Convert to fraction form
    1,827.23/2,739.65 = 656.65/x
  3. Step 3: Cross multiply
    1,827.23x = 2,739.65 × 656.65
  4. Step 4: Simplify right side
    1,827.23x = 1,798,974.19
  5. Step 5: Solve for x
    x = 1,798,974.19/1,827.23
  6. Step 6: Final answer
    x = 984.54

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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.