Home / 2,681.73-4,022.37-1,121.16

Finding the Fourth Proportional to 2,681.73, 4,022.37 and 1,121.16

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Solution

The fourth proportional to 2,681.73, 4,022.37 and 1,121.16 is: 1,681.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681.73 : 4,022.37 = 1,121.16 : x
  2. Step 2: Convert to fraction form
    2,681.73/4,022.37 = 1,121.16/x
  3. Step 3: Cross multiply
    2,681.73x = 4,022.37 × 1,121.16
  4. Step 4: Simplify right side
    2,681.73x = 4,509,720.35
  5. Step 5: Solve for x
    x = 4,509,720.35/2,681.73
  6. Step 6: Final answer
    x = 1,681.65

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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.