Home / 3,953.61-5,456.04-2,185.29

Finding the Fourth Proportional to 3,953.61, 5,456.04 and 2,185.29

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Solution

The fourth proportional to 3,953.61, 5,456.04 and 2,185.29 is: 3,015.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.61 : 5,456.04 = 2,185.29 : x
  2. Step 2: Convert to fraction form
    3,953.61/5,456.04 = 2,185.29/x
  3. Step 3: Cross multiply
    3,953.61x = 5,456.04 × 2,185.29
  4. Step 4: Simplify right side
    3,953.61x = 11,923,029.65
  5. Step 5: Solve for x
    x = 11,923,029.65/3,953.61
  6. Step 6: Final answer
    x = 3,015.73

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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.