Home / 3,021.21-4,160.63-2,719.89

Finding the Fourth Proportional to 3,021.21, 4,160.63 and 2,719.89

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Solution

The fourth proportional to 3,021.21, 4,160.63 and 2,719.89 is: 3,745.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.21 : 4,160.63 = 2,719.89 : x
  2. Step 2: Convert to fraction form
    3,021.21/4,160.63 = 2,719.89/x
  3. Step 3: Cross multiply
    3,021.21x = 4,160.63 × 2,719.89
  4. Step 4: Simplify right side
    3,021.21x = 11,316,462.73
  5. Step 5: Solve for x
    x = 11,316,462.73/3,021.21
  6. Step 6: Final answer
    x = 3,745.67

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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.