Home / 3,438.11-5,147.12-3,109.82

Finding the Fourth Proportional to 3,438.11, 5,147.12 and 3,109.82

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Solution

The fourth proportional to 3,438.11, 5,147.12 and 3,109.82 is: 4,655.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.11 : 5,147.12 = 3,109.82 : x
  2. Step 2: Convert to fraction form
    3,438.11/5,147.12 = 3,109.82/x
  3. Step 3: Cross multiply
    3,438.11x = 5,147.12 × 3,109.82
  4. Step 4: Simplify right side
    3,438.11x = 16,006,598.76
  5. Step 5: Solve for x
    x = 16,006,598.76/3,438.11
  6. Step 6: Final answer
    x = 4,655.64

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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.