Home / 3,932.15-5,424.03-2,868.48

Finding the Fourth Proportional to 3,932.15, 5,424.03 and 2,868.48

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Solution

The fourth proportional to 3,932.15, 5,424.03 and 2,868.48 is: 3,956.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,932.15 : 5,424.03 = 2,868.48 : x
  2. Step 2: Convert to fraction form
    3,932.15/5,424.03 = 2,868.48/x
  3. Step 3: Cross multiply
    3,932.15x = 5,424.03 × 2,868.48
  4. Step 4: Simplify right side
    3,932.15x = 15,558,721.57
  5. Step 5: Solve for x
    x = 15,558,721.57/3,932.15
  6. Step 6: Final answer
    x = 3,956.80

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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.