Home / 3,106.22-4,287.05-2,389.97

Finding the Fourth Proportional to 3,106.22, 4,287.05 and 2,389.97

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Solution

The fourth proportional to 3,106.22, 4,287.05 and 2,389.97 is: 3,298.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.22 : 4,287.05 = 2,389.97 : x
  2. Step 2: Convert to fraction form
    3,106.22/4,287.05 = 2,389.97/x
  3. Step 3: Cross multiply
    3,106.22x = 4,287.05 × 2,389.97
  4. Step 4: Simplify right side
    3,106.22x = 10,245,920.89
  5. Step 5: Solve for x
    x = 10,245,920.89/3,106.22
  6. Step 6: Final answer
    x = 3,298.52

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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.