Home / 3,922.48-5,407.32-2,739.88

Finding the Fourth Proportional to 3,922.48, 5,407.32 and 2,739.88

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Solution

The fourth proportional to 3,922.48, 5,407.32 and 2,739.88 is: 3,777.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.48 : 5,407.32 = 2,739.88 : x
  2. Step 2: Convert to fraction form
    3,922.48/5,407.32 = 2,739.88/x
  3. Step 3: Cross multiply
    3,922.48x = 5,407.32 × 2,739.88
  4. Step 4: Simplify right side
    3,922.48x = 14,815,407.92
  5. Step 5: Solve for x
    x = 14,815,407.92/3,922.48
  6. Step 6: Final answer
    x = 3,777.05

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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.