Home / 3,845-5,739.40-3,300.68

Finding the Fourth Proportional to 3,845, 5,739.40 and 3,300.68

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Solution

The fourth proportional to 3,845, 5,739.40 and 3,300.68 is: 4,926.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845 : 5,739.40 = 3,300.68 : x
  2. Step 2: Convert to fraction form
    3,845/5,739.40 = 3,300.68/x
  3. Step 3: Cross multiply
    3,845x = 5,739.40 × 3,300.68
  4. Step 4: Simplify right side
    3,845x = 18,943,922.79
  5. Step 5: Solve for x
    x = 18,943,922.79/3,845
  6. Step 6: Final answer
    x = 4,926.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.