Home / 1,821.51-2,735.91-1,333.08

Finding the Fourth Proportional to 1,821.51, 2,735.91 and 1,333.08

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Solution

The fourth proportional to 1,821.51, 2,735.91 and 1,333.08 is: 2,002.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.51 : 2,735.91 = 1,333.08 : x
  2. Step 2: Convert to fraction form
    1,821.51/2,735.91 = 1,333.08/x
  3. Step 3: Cross multiply
    1,821.51x = 2,735.91 × 1,333.08
  4. Step 4: Simplify right side
    1,821.51x = 3,647,186.90
  5. Step 5: Solve for x
    x = 3,647,186.90/1,821.51
  6. Step 6: Final answer
    x = 2,002.29

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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.