Home / 3,911.21-5,866.47-1,446.05

Finding the Fourth Proportional to 3,911.21, 5,866.47 and 1,446.05

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Solution

The fourth proportional to 3,911.21, 5,866.47 and 1,446.05 is: 2,168.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.21 : 5,866.47 = 1,446.05 : x
  2. Step 2: Convert to fraction form
    3,911.21/5,866.47 = 1,446.05/x
  3. Step 3: Cross multiply
    3,911.21x = 5,866.47 × 1,446.05
  4. Step 4: Simplify right side
    3,911.21x = 8,483,208.94
  5. Step 5: Solve for x
    x = 8,483,208.94/3,911.21
  6. Step 6: Final answer
    x = 2,168.95

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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.