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Finding the Fourth Proportional to 2,054.88, 3,079.80 and 1,080.36

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Solution

The fourth proportional to 2,054.88, 3,079.80 and 1,080.36 is: 1,619.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,054.88 : 3,079.80 = 1,080.36 : x
  2. Step 2: Convert to fraction form
    2,054.88/3,079.80 = 1,080.36/x
  3. Step 3: Cross multiply
    2,054.88x = 3,079.80 × 1,080.36
  4. Step 4: Simplify right side
    2,054.88x = 3,327,292.73
  5. Step 5: Solve for x
    x = 3,327,292.73/2,054.88
  6. Step 6: Final answer
    x = 1,619.22

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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.