Home / 3,138.96-4,708.44-2,162.10

Finding the Fourth Proportional to 3,138.96, 4,708.44 and 2,162.10

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Solution

The fourth proportional to 3,138.96, 4,708.44 and 2,162.10 is: 3,243.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.96 : 4,708.44 = 2,162.10 : x
  2. Step 2: Convert to fraction form
    3,138.96/4,708.44 = 2,162.10/x
  3. Step 3: Cross multiply
    3,138.96x = 4,708.44 × 2,162.10
  4. Step 4: Simplify right side
    3,138.96x = 10,180,118.12
  5. Step 5: Solve for x
    x = 10,180,118.12/3,138.96
  6. Step 6: Final answer
    x = 3,243.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.