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Finding the Fourth Proportional to 3,033.78, 4,550.64 and 1,389.86

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Solution

The fourth proportional to 3,033.78, 4,550.64 and 1,389.86 is: 2,084.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,033.78 : 4,550.64 = 1,389.86 : x
  2. Step 2: Convert to fraction form
    3,033.78/4,550.64 = 1,389.86/x
  3. Step 3: Cross multiply
    3,033.78x = 4,550.64 × 1,389.86
  4. Step 4: Simplify right side
    3,033.78x = 6,324,752.51
  5. Step 5: Solve for x
    x = 6,324,752.51/3,033.78
  6. Step 6: Final answer
    x = 2,084.78

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.