Home / 1,821.74-2,733.29-1,091.84

Finding the Fourth Proportional to 1,821.74, 2,733.29 and 1,091.84

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Solution

The fourth proportional to 1,821.74, 2,733.29 and 1,091.84 is: 1,638.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.74 : 2,733.29 = 1,091.84 : x
  2. Step 2: Convert to fraction form
    1,821.74/2,733.29 = 1,091.84/x
  3. Step 3: Cross multiply
    1,821.74x = 2,733.29 × 1,091.84
  4. Step 4: Simplify right side
    1,821.74x = 2,984,296.23
  5. Step 5: Solve for x
    x = 2,984,296.23/1,821.74
  6. Step 6: Final answer
    x = 1,638.16

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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.