Home / 2,107.19-3,157.32-1,282.97

Finding the Fourth Proportional to 2,107.19, 3,157.32 and 1,282.97

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Solution

The fourth proportional to 2,107.19, 3,157.32 and 1,282.97 is: 1,922.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.19 : 3,157.32 = 1,282.97 : x
  2. Step 2: Convert to fraction form
    2,107.19/3,157.32 = 1,282.97/x
  3. Step 3: Cross multiply
    2,107.19x = 3,157.32 × 1,282.97
  4. Step 4: Simplify right side
    2,107.19x = 4,050,731.05
  5. Step 5: Solve for x
    x = 4,050,731.05/2,107.19
  6. Step 6: Final answer
    x = 1,922.34

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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.