Home / 3,201.84-4,421.70-2,209.68

Finding the Fourth Proportional to 3,201.84, 4,421.70 and 2,209.68

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Solution

The fourth proportional to 3,201.84, 4,421.70 and 2,209.68 is: 3,051.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,201.84 : 4,421.70 = 2,209.68 : x
  2. Step 2: Convert to fraction form
    3,201.84/4,421.70 = 2,209.68/x
  3. Step 3: Cross multiply
    3,201.84x = 4,421.70 × 2,209.68
  4. Step 4: Simplify right side
    3,201.84x = 9,770,542.06
  5. Step 5: Solve for x
    x = 9,770,542.06/3,201.84
  6. Step 6: Final answer
    x = 3,051.54

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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.