Home / 3,428.08-5,140.86-1,236.28

Finding the Fourth Proportional to 3,428.08, 5,140.86 and 1,236.28

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Solution

The fourth proportional to 3,428.08, 5,140.86 and 1,236.28 is: 1,853.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.08 : 5,140.86 = 1,236.28 : x
  2. Step 2: Convert to fraction form
    3,428.08/5,140.86 = 1,236.28/x
  3. Step 3: Cross multiply
    3,428.08x = 5,140.86 × 1,236.28
  4. Step 4: Simplify right side
    3,428.08x = 6,355,542.40
  5. Step 5: Solve for x
    x = 6,355,542.40/3,428.08
  6. Step 6: Final answer
    x = 1,853.97

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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.