Home / 3,945.08-5,442.26-2,581.54

Finding the Fourth Proportional to 3,945.08, 5,442.26 and 2,581.54

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Solution

The fourth proportional to 3,945.08, 5,442.26 and 2,581.54 is: 3,561.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.08 : 5,442.26 = 2,581.54 : x
  2. Step 2: Convert to fraction form
    3,945.08/5,442.26 = 2,581.54/x
  3. Step 3: Cross multiply
    3,945.08x = 5,442.26 × 2,581.54
  4. Step 4: Simplify right side
    3,945.08x = 14,049,411.88
  5. Step 5: Solve for x
    x = 14,049,411.88/3,945.08
  6. Step 6: Final answer
    x = 3,561.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.