Home / 3,428.28-5,137.47-1,866.96

Finding the Fourth Proportional to 3,428.28, 5,137.47 and 1,866.96

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Solution

The fourth proportional to 3,428.28, 5,137.47 and 1,866.96 is: 2,797.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.28 : 5,137.47 = 1,866.96 : x
  2. Step 2: Convert to fraction form
    3,428.28/5,137.47 = 1,866.96/x
  3. Step 3: Cross multiply
    3,428.28x = 5,137.47 × 1,866.96
  4. Step 4: Simplify right side
    3,428.28x = 9,591,450.99
  5. Step 5: Solve for x
    x = 9,591,450.99/3,428.28
  6. Step 6: Final answer
    x = 2,797.74

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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.