Home / 2,218.03-3,323.91-1,231.28

Finding the Fourth Proportional to 2,218.03, 3,323.91 and 1,231.28

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Solution

The fourth proportional to 2,218.03, 3,323.91 and 1,231.28 is: 1,845.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.03 : 3,323.91 = 1,231.28 : x
  2. Step 2: Convert to fraction form
    2,218.03/3,323.91 = 1,231.28/x
  3. Step 3: Cross multiply
    2,218.03x = 3,323.91 × 1,231.28
  4. Step 4: Simplify right side
    2,218.03x = 4,092,663.90
  5. Step 5: Solve for x
    x = 4,092,663.90/2,218.03
  6. Step 6: Final answer
    x = 1,845.18

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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.