Home / 2,107.27-3,157.39-1,283.05

Finding the Fourth Proportional to 2,107.27, 3,157.39 and 1,283.05

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Solution

The fourth proportional to 2,107.27, 3,157.39 and 1,283.05 is: 1,922.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.27 : 3,157.39 = 1,283.05 : x
  2. Step 2: Convert to fraction form
    2,107.27/3,157.39 = 1,283.05/x
  3. Step 3: Cross multiply
    2,107.27x = 3,157.39 × 1,283.05
  4. Step 4: Simplify right side
    2,107.27x = 4,051,089.24
  5. Step 5: Solve for x
    x = 4,051,089.24/2,107.27
  6. Step 6: Final answer
    x = 1,922.43

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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.