Home / 2,207.45-3,046.34-1,212.75

Finding the Fourth Proportional to 2,207.45, 3,046.34 and 1,212.75

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Solution

The fourth proportional to 2,207.45, 3,046.34 and 1,212.75 is: 1,673.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.45 : 3,046.34 = 1,212.75 : x
  2. Step 2: Convert to fraction form
    2,207.45/3,046.34 = 1,212.75/x
  3. Step 3: Cross multiply
    2,207.45x = 3,046.34 × 1,212.75
  4. Step 4: Simplify right side
    2,207.45x = 3,694,448.84
  5. Step 5: Solve for x
    x = 3,694,448.84/2,207.45
  6. Step 6: Final answer
    x = 1,673.63

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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.