Home / 3,927.32-5,416.86-2,791.16

Finding the Fourth Proportional to 3,927.32, 5,416.86 and 2,791.16

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Solution

The fourth proportional to 3,927.32, 5,416.86 and 2,791.16 is: 3,849.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.32 : 5,416.86 = 2,791.16 : x
  2. Step 2: Convert to fraction form
    3,927.32/5,416.86 = 2,791.16/x
  3. Step 3: Cross multiply
    3,927.32x = 5,416.86 × 2,791.16
  4. Step 4: Simplify right side
    3,927.32x = 15,119,322.96
  5. Step 5: Solve for x
    x = 15,119,322.96/3,927.32
  6. Step 6: Final answer
    x = 3,849.78

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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.