Home / 3,100.28-4,650.48-1,226.12

Finding the Fourth Proportional to 3,100.28, 4,650.48 and 1,226.12

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Solution

The fourth proportional to 3,100.28, 4,650.48 and 1,226.12 is: 1,839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.28 : 4,650.48 = 1,226.12 : x
  2. Step 2: Convert to fraction form
    3,100.28/4,650.48 = 1,226.12/x
  3. Step 3: Cross multiply
    3,100.28x = 4,650.48 × 1,226.12
  4. Step 4: Simplify right side
    3,100.28x = 5,702,046.54
  5. Step 5: Solve for x
    x = 5,702,046.54/3,100.28
  6. Step 6: Final answer
    x = 1,839.20

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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.