Home / 1,976.09-2,727.02-1,091.90

Finding the Fourth Proportional to 1,976.09, 2,727.02 and 1,091.90

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Solution

The fourth proportional to 1,976.09, 2,727.02 and 1,091.90 is: 1,506.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976.09 : 2,727.02 = 1,091.90 : x
  2. Step 2: Convert to fraction form
    1,976.09/2,727.02 = 1,091.90/x
  3. Step 3: Cross multiply
    1,976.09x = 2,727.02 × 1,091.90
  4. Step 4: Simplify right side
    1,976.09x = 2,977,633.14
  5. Step 5: Solve for x
    x = 2,977,633.14/1,976.09
  6. Step 6: Final answer
    x = 1,506.83

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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.