Home / 3,620.44-5,430.66-1,672.39

Finding the Fourth Proportional to 3,620.44, 5,430.66 and 1,672.39

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Solution

The fourth proportional to 3,620.44, 5,430.66 and 1,672.39 is: 2,508.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.44 : 5,430.66 = 1,672.39 : x
  2. Step 2: Convert to fraction form
    3,620.44/5,430.66 = 1,672.39/x
  3. Step 3: Cross multiply
    3,620.44x = 5,430.66 × 1,672.39
  4. Step 4: Simplify right side
    3,620.44x = 9,082,181.48
  5. Step 5: Solve for x
    x = 9,082,181.48/3,620.44
  6. Step 6: Final answer
    x = 2,508.59

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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.