Home / 5,143.94-7,098.64-2,786.08

Finding the Fourth Proportional to 5,143.94, 7,098.64 and 2,786.08

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Solution

The fourth proportional to 5,143.94, 7,098.64 and 2,786.08 is: 3,844.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.94 : 7,098.64 = 2,786.08 : x
  2. Step 2: Convert to fraction form
    5,143.94/7,098.64 = 2,786.08/x
  3. Step 3: Cross multiply
    5,143.94x = 7,098.64 × 2,786.08
  4. Step 4: Simplify right side
    5,143.94x = 19,777,378.93
  5. Step 5: Solve for x
    x = 19,777,378.93/5,143.94
  6. Step 6: Final answer
    x = 3,844.79

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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.