Home / 1,808.67-2,498.03-1,218.18

Finding the Fourth Proportional to 1,808.67, 2,498.03 and 1,218.18

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Solution

The fourth proportional to 1,808.67, 2,498.03 and 1,218.18 is: 1,682.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,808.67 : 2,498.03 = 1,218.18 : x
  2. Step 2: Convert to fraction form
    1,808.67/2,498.03 = 1,218.18/x
  3. Step 3: Cross multiply
    1,808.67x = 2,498.03 × 1,218.18
  4. Step 4: Simplify right side
    1,808.67x = 3,043,044.09
  5. Step 5: Solve for x
    x = 3,043,044.09/1,808.67
  6. Step 6: Final answer
    x = 1,682.48

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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.