Home / 3,051.33-4,212.62-2,005.21

Finding the Fourth Proportional to 3,051.33, 4,212.62 and 2,005.21

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Solution

The fourth proportional to 3,051.33, 4,212.62 and 2,005.21 is: 2,768.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,051.33 : 4,212.62 = 2,005.21 : x
  2. Step 2: Convert to fraction form
    3,051.33/4,212.62 = 2,005.21/x
  3. Step 3: Cross multiply
    3,051.33x = 4,212.62 × 2,005.21
  4. Step 4: Simplify right side
    3,051.33x = 8,447,187.75
  5. Step 5: Solve for x
    x = 8,447,187.75/3,051.33
  6. Step 6: Final answer
    x = 2,768.36

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1.5x scale

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.