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Finding the Fourth Proportional to 3,391.03, 4,679.76 and 1,898.92

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Solution

The fourth proportional to 3,391.03, 4,679.76 and 1,898.92 is: 2,620.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.03 : 4,679.76 = 1,898.92 : x
  2. Step 2: Convert to fraction form
    3,391.03/4,679.76 = 1,898.92/x
  3. Step 3: Cross multiply
    3,391.03x = 4,679.76 × 1,898.92
  4. Step 4: Simplify right side
    3,391.03x = 8,886,489.86
  5. Step 5: Solve for x
    x = 8,886,489.86/3,391.03
  6. Step 6: Final answer
    x = 2,620.59

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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.