Home / 3,925.14-5,416.79-2,156.79

Finding the Fourth Proportional to 3,925.14, 5,416.79 and 2,156.79

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Solution

The fourth proportional to 3,925.14, 5,416.79 and 2,156.79 is: 2,976.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,925.14 : 5,416.79 = 2,156.79 : x
  2. Step 2: Convert to fraction form
    3,925.14/5,416.79 = 2,156.79/x
  3. Step 3: Cross multiply
    3,925.14x = 5,416.79 × 2,156.79
  4. Step 4: Simplify right side
    3,925.14x = 11,682,883.90
  5. Step 5: Solve for x
    x = 11,682,883.90/3,925.14
  6. Step 6: Final answer
    x = 2,976.42

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