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Finding the Fourth Proportional to 3,608.51, 5,412.29 and 976.22

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Solution

The fourth proportional to 3,608.51, 5,412.29 and 976.22 is: 1,464.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.51 : 5,412.29 = 976.22 : x
  2. Step 2: Convert to fraction form
    3,608.51/5,412.29 = 976.22/x
  3. Step 3: Cross multiply
    3,608.51x = 5,412.29 × 976.22
  4. Step 4: Simplify right side
    3,608.51x = 5,283,558.68
  5. Step 5: Solve for x
    x = 5,283,558.68/3,608.51
  6. Step 6: Final answer
    x = 1,464.19

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.