Home / 1,812.12-2,716.14-1,080.17

Finding the Fourth Proportional to 1,812.12, 2,716.14 and 1,080.17

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Solution

The fourth proportional to 1,812.12, 2,716.14 and 1,080.17 is: 1,619.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.12 : 2,716.14 = 1,080.17 : x
  2. Step 2: Convert to fraction form
    1,812.12/2,716.14 = 1,080.17/x
  3. Step 3: Cross multiply
    1,812.12x = 2,716.14 × 1,080.17
  4. Step 4: Simplify right side
    1,812.12x = 2,933,879.36
  5. Step 5: Solve for x
    x = 2,933,879.36/1,812.12
  6. Step 6: Final answer
    x = 1,619.03

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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.