Home / 4,072.16-6,112.56-1,765.28

Finding the Fourth Proportional to 4,072.16, 6,112.56 and 1,765.28

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Solution

The fourth proportional to 4,072.16, 6,112.56 and 1,765.28 is: 2,649.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,072.16 : 6,112.56 = 1,765.28 : x
  2. Step 2: Convert to fraction form
    4,072.16/6,112.56 = 1,765.28/x
  3. Step 3: Cross multiply
    4,072.16x = 6,112.56 × 1,765.28
  4. Step 4: Simplify right side
    4,072.16x = 10,790,379.92
  5. Step 5: Solve for x
    x = 10,790,379.92/4,072.16
  6. Step 6: Final answer
    x = 2,649.79

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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.