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Finding the Fourth Proportional to 3,918.19, 5,879.90 and 1,453.03

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Solution

The fourth proportional to 3,918.19, 5,879.90 and 1,453.03 is: 2,180.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.19 : 5,879.90 = 1,453.03 : x
  2. Step 2: Convert to fraction form
    3,918.19/5,879.90 = 1,453.03/x
  3. Step 3: Cross multiply
    3,918.19x = 5,879.90 × 1,453.03
  4. Step 4: Simplify right side
    3,918.19x = 8,543,671.10
  5. Step 5: Solve for x
    x = 8,543,671.10/3,918.19
  6. Step 6: Final answer
    x = 2,180.51

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Why These Related Problems?

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