Home / 3,784.24-5,220.12-2,212

Finding the Fourth Proportional to 3,784.24, 5,220.12 and 2,212

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Solution

The fourth proportional to 3,784.24, 5,220.12 and 2,212 is: 3,051.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.24 : 5,220.12 = 2,212 : x
  2. Step 2: Convert to fraction form
    3,784.24/5,220.12 = 2,212/x
  3. Step 3: Cross multiply
    3,784.24x = 5,220.12 × 2,212
  4. Step 4: Simplify right side
    3,784.24x = 11,546,905.44
  5. Step 5: Solve for x
    x = 11,546,905.44/3,784.24
  6. Step 6: Final answer
    x = 3,051.31

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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.