Home / 1,943.09-2,908.08-1,120.13

Finding the Fourth Proportional to 1,943.09, 2,908.08 and 1,120.13

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Solution

The fourth proportional to 1,943.09, 2,908.08 and 1,120.13 is: 1,676.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.09 : 2,908.08 = 1,120.13 : x
  2. Step 2: Convert to fraction form
    1,943.09/2,908.08 = 1,120.13/x
  3. Step 3: Cross multiply
    1,943.09x = 2,908.08 × 1,120.13
  4. Step 4: Simplify right side
    1,943.09x = 3,257,413.11
  5. Step 5: Solve for x
    x = 3,257,413.11/1,943.09
  6. Step 6: Final answer
    x = 1,676.41

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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.