Home / 3,953.65-5,456.04-2,185.25

Finding the Fourth Proportional to 3,953.65, 5,456.04 and 2,185.25

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Solution

The fourth proportional to 3,953.65, 5,456.04 and 2,185.25 is: 3,015.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.65 : 5,456.04 = 2,185.25 : x
  2. Step 2: Convert to fraction form
    3,953.65/5,456.04 = 2,185.25/x
  3. Step 3: Cross multiply
    3,953.65x = 5,456.04 × 2,185.25
  4. Step 4: Simplify right side
    3,953.65x = 11,922,811.41
  5. Step 5: Solve for x
    x = 11,922,811.41/3,953.65
  6. Step 6: Final answer
    x = 3,015.65

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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.