Home / 1,927.88-2,662.26-1,228.04

Finding the Fourth Proportional to 1,927.88, 2,662.26 and 1,228.04

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Solution

The fourth proportional to 1,927.88, 2,662.26 and 1,228.04 is: 1,695.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.88 : 2,662.26 = 1,228.04 : x
  2. Step 2: Convert to fraction form
    1,927.88/2,662.26 = 1,228.04/x
  3. Step 3: Cross multiply
    1,927.88x = 2,662.26 × 1,228.04
  4. Step 4: Simplify right side
    1,927.88x = 3,269,361.77
  5. Step 5: Solve for x
    x = 3,269,361.77/1,927.88
  6. Step 6: Final answer
    x = 1,695.83

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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.