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Finding the Fourth Proportional to 3,603.44, 4,972.92 and 2,111.34

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Solution

The fourth proportional to 3,603.44, 4,972.92 and 2,111.34 is: 2,913.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.44 : 4,972.92 = 2,111.34 : x
  2. Step 2: Convert to fraction form
    3,603.44/4,972.92 = 2,111.34/x
  3. Step 3: Cross multiply
    3,603.44x = 4,972.92 × 2,111.34
  4. Step 4: Simplify right side
    3,603.44x = 10,499,524.91
  5. Step 5: Solve for x
    x = 10,499,524.91/3,603.44
  6. Step 6: Final answer
    x = 2,913.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.