Home / 6,112.12-9,162.54-2,215.48

Finding the Fourth Proportional to 6,112.12, 9,162.54 and 2,215.48

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Solution

The fourth proportional to 6,112.12, 9,162.54 and 2,215.48 is: 3,321.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,112.12 : 9,162.54 = 2,215.48 : x
  2. Step 2: Convert to fraction form
    6,112.12/9,162.54 = 2,215.48/x
  3. Step 3: Cross multiply
    6,112.12x = 9,162.54 × 2,215.48
  4. Step 4: Simplify right side
    6,112.12x = 20,299,424.12
  5. Step 5: Solve for x
    x = 20,299,424.12/6,112.12
  6. Step 6: Final answer
    x = 3,321.18

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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.