Home / 1,908.74-2,634.39-1,122.82

Finding the Fourth Proportional to 1,908.74, 2,634.39 and 1,122.82

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Solution

The fourth proportional to 1,908.74, 2,634.39 and 1,122.82 is: 1,549.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.74 : 2,634.39 = 1,122.82 : x
  2. Step 2: Convert to fraction form
    1,908.74/2,634.39 = 1,122.82/x
  3. Step 3: Cross multiply
    1,908.74x = 2,634.39 × 1,122.82
  4. Step 4: Simplify right side
    1,908.74x = 2,957,945.78
  5. Step 5: Solve for x
    x = 2,957,945.78/1,908.74
  6. Step 6: Final answer
    x = 1,549.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.