Home / 1,935.60-2,667.48-1,906.80

Finding the Fourth Proportional to 1,935.60, 2,667.48 and 1,906.80

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Solution

The fourth proportional to 1,935.60, 2,667.48 and 1,906.80 is: 2,627.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.60 : 2,667.48 = 1,906.80 : x
  2. Step 2: Convert to fraction form
    1,935.60/2,667.48 = 1,906.80/x
  3. Step 3: Cross multiply
    1,935.60x = 2,667.48 × 1,906.80
  4. Step 4: Simplify right side
    1,935.60x = 5,086,350.86
  5. Step 5: Solve for x
    x = 5,086,350.86/1,935.60
  6. Step 6: Final answer
    x = 2,627.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.