Home / 3,154.36-4,348.47-2,207.22

Finding the Fourth Proportional to 3,154.36, 4,348.47 and 2,207.22

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Solution

The fourth proportional to 3,154.36, 4,348.47 and 2,207.22 is: 3,042.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.36 : 4,348.47 = 2,207.22 : x
  2. Step 2: Convert to fraction form
    3,154.36/4,348.47 = 2,207.22/x
  3. Step 3: Cross multiply
    3,154.36x = 4,348.47 × 2,207.22
  4. Step 4: Simplify right side
    3,154.36x = 9,598,021.68
  5. Step 5: Solve for x
    x = 9,598,021.68/3,154.36
  6. Step 6: Final answer
    x = 3,042.78

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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.