Home / 1,958.29-2,936.14-1,081.21

Finding the Fourth Proportional to 1,958.29, 2,936.14 and 1,081.21

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Solution

The fourth proportional to 1,958.29, 2,936.14 and 1,081.21 is: 1,621.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958.29 : 2,936.14 = 1,081.21 : x
  2. Step 2: Convert to fraction form
    1,958.29/2,936.14 = 1,081.21/x
  3. Step 3: Cross multiply
    1,958.29x = 2,936.14 × 1,081.21
  4. Step 4: Simplify right side
    1,958.29x = 3,174,583.93
  5. Step 5: Solve for x
    x = 3,174,583.93/1,958.29
  6. Step 6: Final answer
    x = 1,621.10

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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.