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Finding the Fourth Proportional to 1,805.01, 2,705.34 and 879.18

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Solution

The fourth proportional to 1,805.01, 2,705.34 and 879.18 is: 1,317.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,805.01 : 2,705.34 = 879.18 : x
  2. Step 2: Convert to fraction form
    1,805.01/2,705.34 = 879.18/x
  3. Step 3: Cross multiply
    1,805.01x = 2,705.34 × 879.18
  4. Step 4: Simplify right side
    1,805.01x = 2,378,476.43
  5. Step 5: Solve for x
    x = 2,378,476.43/1,805.01
  6. Step 6: Final answer
    x = 1,317.71

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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.