Home / 1,913.44-2,640.15-1,251.27

Finding the Fourth Proportional to 1,913.44, 2,640.15 and 1,251.27

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Solution

The fourth proportional to 1,913.44, 2,640.15 and 1,251.27 is: 1,726.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913.44 : 2,640.15 = 1,251.27 : x
  2. Step 2: Convert to fraction form
    1,913.44/2,640.15 = 1,251.27/x
  3. Step 3: Cross multiply
    1,913.44x = 2,640.15 × 1,251.27
  4. Step 4: Simplify right side
    1,913.44x = 3,303,540.49
  5. Step 5: Solve for x
    x = 3,303,540.49/1,913.44
  6. Step 6: Final answer
    x = 1,726.49

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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.