Home / 3,009.39-4,149.09-2,505.21

Finding the Fourth Proportional to 3,009.39, 4,149.09 and 2,505.21

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Solution

The fourth proportional to 3,009.39, 4,149.09 and 2,505.21 is: 3,453.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,009.39 : 4,149.09 = 2,505.21 : x
  2. Step 2: Convert to fraction form
    3,009.39/4,149.09 = 2,505.21/x
  3. Step 3: Cross multiply
    3,009.39x = 4,149.09 × 2,505.21
  4. Step 4: Simplify right side
    3,009.39x = 10,394,341.76
  5. Step 5: Solve for x
    x = 10,394,341.76/3,009.39
  6. Step 6: Final answer
    x = 3,453.97

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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.