Home / 3,138.06-4,329.09-2,207.10

Finding the Fourth Proportional to 3,138.06, 4,329.09 and 2,207.10

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Solution

The fourth proportional to 3,138.06, 4,329.09 and 2,207.10 is: 3,044.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.06 : 4,329.09 = 2,207.10 : x
  2. Step 2: Convert to fraction form
    3,138.06/4,329.09 = 2,207.10/x
  3. Step 3: Cross multiply
    3,138.06x = 4,329.09 × 2,207.10
  4. Step 4: Simplify right side
    3,138.06x = 9,554,734.54
  5. Step 5: Solve for x
    x = 9,554,734.54/3,138.06
  6. Step 6: Final answer
    x = 3,044.79

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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.