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Finding the Fourth Proportional to 2,537.58, 3,805.44 and 976.78

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Solution

The fourth proportional to 2,537.58, 3,805.44 and 976.78 is: 1,464.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,537.58 : 3,805.44 = 976.78 : x
  2. Step 2: Convert to fraction form
    2,537.58/3,805.44 = 976.78/x
  3. Step 3: Cross multiply
    2,537.58x = 3,805.44 × 976.78
  4. Step 4: Simplify right side
    2,537.58x = 3,717,077.68
  5. Step 5: Solve for x
    x = 3,717,077.68/2,537.58
  6. Step 6: Final answer
    x = 1,464.81

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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.