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Finding the Fourth Proportional to 3,440.90, 4,748.44 and 1,868.99

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Solution

The fourth proportional to 3,440.90, 4,748.44 and 1,868.99 is: 2,579.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.90 : 4,748.44 = 1,868.99 : x
  2. Step 2: Convert to fraction form
    3,440.90/4,748.44 = 1,868.99/x
  3. Step 3: Cross multiply
    3,440.90x = 4,748.44 × 1,868.99
  4. Step 4: Simplify right side
    3,440.90x = 8,874,786.88
  5. Step 5: Solve for x
    x = 8,874,786.88/3,440.90
  6. Step 6: Final answer
    x = 2,579.21

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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.