Home / 3,407.82-5,112.81-1,216.50

Finding the Fourth Proportional to 3,407.82, 5,112.81 and 1,216.50

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Solution

The fourth proportional to 3,407.82, 5,112.81 and 1,216.50 is: 1,825.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,407.82 : 5,112.81 = 1,216.50 : x
  2. Step 2: Convert to fraction form
    3,407.82/5,112.81 = 1,216.50/x
  3. Step 3: Cross multiply
    3,407.82x = 5,112.81 × 1,216.50
  4. Step 4: Simplify right side
    3,407.82x = 6,219,733.37
  5. Step 5: Solve for x
    x = 6,219,733.37/3,407.82
  6. Step 6: Final answer
    x = 1,825.14

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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.