Home / 3,208.28-4,811.46-1,127.90

Finding the Fourth Proportional to 3,208.28, 4,811.46 and 1,127.90

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Solution

The fourth proportional to 3,208.28, 4,811.46 and 1,127.90 is: 1,691.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.28 : 4,811.46 = 1,127.90 : x
  2. Step 2: Convert to fraction form
    3,208.28/4,811.46 = 1,127.90/x
  3. Step 3: Cross multiply
    3,208.28x = 4,811.46 × 1,127.90
  4. Step 4: Simplify right side
    3,208.28x = 5,426,845.73
  5. Step 5: Solve for x
    x = 5,426,845.73/3,208.28
  6. Step 6: Final answer
    x = 1,691.51

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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.