Home / 1,360.82-2,039.41-1,120.25

Finding the Fourth Proportional to 1,360.82, 2,039.41 and 1,120.25

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Solution

The fourth proportional to 1,360.82, 2,039.41 and 1,120.25 is: 1,678.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360.82 : 2,039.41 = 1,120.25 : x
  2. Step 2: Convert to fraction form
    1,360.82/2,039.41 = 1,120.25/x
  3. Step 3: Cross multiply
    1,360.82x = 2,039.41 × 1,120.25
  4. Step 4: Simplify right side
    1,360.82x = 2,284,643.45
  5. Step 5: Solve for x
    x = 2,284,643.45/1,360.82
  6. Step 6: Final answer
    x = 1,678.87

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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.