Home / 2,107.60-3,161.46-1,867.12

Finding the Fourth Proportional to 2,107.60, 3,161.46 and 1,867.12

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Solution

The fourth proportional to 2,107.60, 3,161.46 and 1,867.12 is: 2,800.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.60 : 3,161.46 = 1,867.12 : x
  2. Step 2: Convert to fraction form
    2,107.60/3,161.46 = 1,867.12/x
  3. Step 3: Cross multiply
    2,107.60x = 3,161.46 × 1,867.12
  4. Step 4: Simplify right side
    2,107.60x = 5,902,825.20
  5. Step 5: Solve for x
    x = 5,902,825.20/2,107.60
  6. Step 6: Final answer
    x = 2,800.73

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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.