Home / 5,286.91-7,932.26-2,478.28

Finding the Fourth Proportional to 5,286.91, 7,932.26 and 2,478.28

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Solution

The fourth proportional to 5,286.91, 7,932.26 and 2,478.28 is: 3,718.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.91 : 7,932.26 = 2,478.28 : x
  2. Step 2: Convert to fraction form
    5,286.91/7,932.26 = 2,478.28/x
  3. Step 3: Cross multiply
    5,286.91x = 7,932.26 × 2,478.28
  4. Step 4: Simplify right side
    5,286.91x = 19,658,361.31
  5. Step 5: Solve for x
    x = 19,658,361.31/5,286.91
  6. Step 6: Final answer
    x = 3,718.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.