Home / 2,615.39-3,923.09-2,571.65

Finding the Fourth Proportional to 2,615.39, 3,923.09 and 2,571.65

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Solution

The fourth proportional to 2,615.39, 3,923.09 and 2,571.65 is: 3,857.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.39 : 3,923.09 = 2,571.65 : x
  2. Step 2: Convert to fraction form
    2,615.39/3,923.09 = 2,571.65/x
  3. Step 3: Cross multiply
    2,615.39x = 3,923.09 × 2,571.65
  4. Step 4: Simplify right side
    2,615.39x = 10,088,801.54
  5. Step 5: Solve for x
    x = 10,088,801.54/2,615.39
  6. Step 6: Final answer
    x = 3,857.48

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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.