Home / 1,813.09-2,718.06-1,081.13

Finding the Fourth Proportional to 1,813.09, 2,718.06 and 1,081.13

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Solution

The fourth proportional to 1,813.09, 2,718.06 and 1,081.13 is: 1,620.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813.09 : 2,718.06 = 1,081.13 : x
  2. Step 2: Convert to fraction form
    1,813.09/2,718.06 = 1,081.13/x
  3. Step 3: Cross multiply
    1,813.09x = 2,718.06 × 1,081.13
  4. Step 4: Simplify right side
    1,813.09x = 2,938,562.62
  5. Step 5: Solve for x
    x = 2,938,562.62/1,813.09
  6. Step 6: Final answer
    x = 1,620.75

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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.