Home / 3,620.36-5,431.48-1,673.96

Finding the Fourth Proportional to 3,620.36, 5,431.48 and 1,673.96

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Solution

The fourth proportional to 3,620.36, 5,431.48 and 1,673.96 is: 2,511.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.36 : 5,431.48 = 1,673.96 : x
  2. Step 2: Convert to fraction form
    3,620.36/5,431.48 = 1,673.96/x
  3. Step 3: Cross multiply
    3,620.36x = 5,431.48 × 1,673.96
  4. Step 4: Simplify right side
    3,620.36x = 9,092,080.26
  5. Step 5: Solve for x
    x = 9,092,080.26/3,620.36
  6. Step 6: Final answer
    x = 2,511.37

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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.