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Finding the Fourth Proportional to 3,906.99, 5,860.80 and 1,273.46

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Solution

The fourth proportional to 3,906.99, 5,860.80 and 1,273.46 is: 1,910.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,906.99 : 5,860.80 = 1,273.46 : x
  2. Step 2: Convert to fraction form
    3,906.99/5,860.80 = 1,273.46/x
  3. Step 3: Cross multiply
    3,906.99x = 5,860.80 × 1,273.46
  4. Step 4: Simplify right side
    3,906.99x = 7,463,465.06
  5. Step 5: Solve for x
    x = 7,463,465.06/3,906.99
  6. Step 6: Final answer
    x = 1,910.29

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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.