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Finding the Fourth Proportional to 2,438.03, 3,656.03 and 936.82

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Solution

The fourth proportional to 2,438.03, 3,656.03 and 936.82 is: 1,404.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,438.03 : 3,656.03 = 936.82 : x
  2. Step 2: Convert to fraction form
    2,438.03/3,656.03 = 936.82/x
  3. Step 3: Cross multiply
    2,438.03x = 3,656.03 × 936.82
  4. Step 4: Simplify right side
    2,438.03x = 3,425,028.20
  5. Step 5: Solve for x
    x = 3,425,028.20/2,438.03
  6. Step 6: Final answer
    x = 1,404.84

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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.