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Finding the Fourth Proportional to 3,181.52, 4,396.20 and 2,488.16

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Solution

The fourth proportional to 3,181.52, 4,396.20 and 2,488.16 is: 3,438.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.52 : 4,396.20 = 2,488.16 : x
  2. Step 2: Convert to fraction form
    3,181.52/4,396.20 = 2,488.16/x
  3. Step 3: Cross multiply
    3,181.52x = 4,396.20 × 2,488.16
  4. Step 4: Simplify right side
    3,181.52x = 10,938,448.99
  5. Step 5: Solve for x
    x = 10,938,448.99/3,181.52
  6. Step 6: Final answer
    x = 3,438.12

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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.