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Finding the Fourth Proportional to 2,635.77, 3,944.34 and 1,940.79

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Solution

The fourth proportional to 2,635.77, 3,944.34 and 1,940.79 is: 2,904.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,635.77 : 3,944.34 = 1,940.79 : x
  2. Step 2: Convert to fraction form
    2,635.77/3,944.34 = 1,940.79/x
  3. Step 3: Cross multiply
    2,635.77x = 3,944.34 × 1,940.79
  4. Step 4: Simplify right side
    2,635.77x = 7,655,135.63
  5. Step 5: Solve for x
    x = 7,655,135.63/2,635.77
  6. Step 6: Final answer
    x = 2,904.33

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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.