Home / 1,976.07-2,726.84-1,219.73

Finding the Fourth Proportional to 1,976.07, 2,726.84 and 1,219.73

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Solution

The fourth proportional to 1,976.07, 2,726.84 and 1,219.73 is: 1,683.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976.07 : 2,726.84 = 1,219.73 : x
  2. Step 2: Convert to fraction form
    1,976.07/2,726.84 = 1,219.73/x
  3. Step 3: Cross multiply
    1,976.07x = 2,726.84 × 1,219.73
  4. Step 4: Simplify right side
    1,976.07x = 3,326,008.55
  5. Step 5: Solve for x
    x = 3,326,008.55/1,976.07
  6. Step 6: Final answer
    x = 1,683.14

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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.