Home / 3,427.66-5,140.43-1,236.11

Finding the Fourth Proportional to 3,427.66, 5,140.43 and 1,236.11

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Solution

The fourth proportional to 3,427.66, 5,140.43 and 1,236.11 is: 1,853.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.66 : 5,140.43 = 1,236.11 : x
  2. Step 2: Convert to fraction form
    3,427.66/5,140.43 = 1,236.11/x
  3. Step 3: Cross multiply
    3,427.66x = 5,140.43 × 1,236.11
  4. Step 4: Simplify right side
    3,427.66x = 6,354,109.68
  5. Step 5: Solve for x
    x = 6,354,109.68/3,427.66
  6. Step 6: Final answer
    x = 1,853.77

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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.