Home / 7,048.25-10,571.97-2,117.78

Finding the Fourth Proportional to 7,048.25, 10,571.97 and 2,117.78

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Solution

The fourth proportional to 7,048.25, 10,571.97 and 2,117.78 is: 3,176.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,048.25 : 10,571.97 = 2,117.78 : x
  2. Step 2: Convert to fraction form
    7,048.25/10,571.97 = 2,117.78/x
  3. Step 3: Cross multiply
    7,048.25x = 10,571.97 × 2,117.78
  4. Step 4: Simplify right side
    7,048.25x = 22,389,106.63
  5. Step 5: Solve for x
    x = 22,389,106.63/7,048.25
  6. Step 6: Final answer
    x = 3,176.55

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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.