Home / 2,112.42-3,163.65-1,069.14

Finding the Fourth Proportional to 2,112.42, 3,163.65 and 1,069.14

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Solution

The fourth proportional to 2,112.42, 3,163.65 and 1,069.14 is: 1,601.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112.42 : 3,163.65 = 1,069.14 : x
  2. Step 2: Convert to fraction form
    2,112.42/3,163.65 = 1,069.14/x
  3. Step 3: Cross multiply
    2,112.42x = 3,163.65 × 1,069.14
  4. Step 4: Simplify right side
    2,112.42x = 3,382,384.76
  5. Step 5: Solve for x
    x = 3,382,384.76/2,112.42
  6. Step 6: Final answer
    x = 1,601.19

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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.