Home / 3,869.37-5,811.21-2,021.76

Finding the Fourth Proportional to 3,869.37, 5,811.21 and 2,021.76

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Solution

The fourth proportional to 3,869.37, 5,811.21 and 2,021.76 is: 3,036.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.37 : 5,811.21 = 2,021.76 : x
  2. Step 2: Convert to fraction form
    3,869.37/5,811.21 = 2,021.76/x
  3. Step 3: Cross multiply
    3,869.37x = 5,811.21 × 2,021.76
  4. Step 4: Simplify right side
    3,869.37x = 11,748,871.93
  5. Step 5: Solve for x
    x = 11,748,871.93/3,869.37
  6. Step 6: Final answer
    x = 3,036.38

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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.