Home / 3,546.15-5,313.37-2,155.28

Finding the Fourth Proportional to 3,546.15, 5,313.37 and 2,155.28

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Solution

The fourth proportional to 3,546.15, 5,313.37 and 2,155.28 is: 3,229.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,546.15 : 5,313.37 = 2,155.28 : x
  2. Step 2: Convert to fraction form
    3,546.15/5,313.37 = 2,155.28/x
  3. Step 3: Cross multiply
    3,546.15x = 5,313.37 × 2,155.28
  4. Step 4: Simplify right side
    3,546.15x = 11,451,823.07
  5. Step 5: Solve for x
    x = 11,451,823.07/3,546.15
  6. Step 6: Final answer
    x = 3,229.36

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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.