Home / 3,409.62-5,112.73-1,765.72

Finding the Fourth Proportional to 3,409.62, 5,112.73 and 1,765.72

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Solution

The fourth proportional to 3,409.62, 5,112.73 and 1,765.72 is: 2,647.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409.62 : 5,112.73 = 1,765.72 : x
  2. Step 2: Convert to fraction form
    3,409.62/5,112.73 = 1,765.72/x
  3. Step 3: Cross multiply
    3,409.62x = 5,112.73 × 1,765.72
  4. Step 4: Simplify right side
    3,409.62x = 9,027,649.62
  5. Step 5: Solve for x
    x = 9,027,649.62/3,409.62
  6. Step 6: Final answer
    x = 2,647.70

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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.