Home / 2,107.74-3,157.20-1,694.64

Finding the Fourth Proportional to 2,107.74, 3,157.20 and 1,694.64

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Solution

The fourth proportional to 2,107.74, 3,157.20 and 1,694.64 is: 2,538.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.74 : 3,157.20 = 1,694.64 : x
  2. Step 2: Convert to fraction form
    2,107.74/3,157.20 = 1,694.64/x
  3. Step 3: Cross multiply
    2,107.74x = 3,157.20 × 1,694.64
  4. Step 4: Simplify right side
    2,107.74x = 5,350,317.41
  5. Step 5: Solve for x
    x = 5,350,317.41/2,107.74
  6. Step 6: Final answer
    x = 2,538.41

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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.