Home / 3,784.90-5,223.16-2,212.68

Finding the Fourth Proportional to 3,784.90, 5,223.16 and 2,212.68

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Solution

The fourth proportional to 3,784.90, 5,223.16 and 2,212.68 is: 3,053.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.90 : 5,223.16 = 2,212.68 : x
  2. Step 2: Convert to fraction form
    3,784.90/5,223.16 = 2,212.68/x
  3. Step 3: Cross multiply
    3,784.90x = 5,223.16 × 2,212.68
  4. Step 4: Simplify right side
    3,784.90x = 11,557,181.67
  5. Step 5: Solve for x
    x = 11,557,181.67/3,784.90
  6. Step 6: Final answer
    x = 3,053.50

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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.