Home / 3,112.85-4,295.49-1,933.70

Finding the Fourth Proportional to 3,112.85, 4,295.49 and 1,933.70

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Solution

The fourth proportional to 3,112.85, 4,295.49 and 1,933.70 is: 2,668.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.85 : 4,295.49 = 1,933.70 : x
  2. Step 2: Convert to fraction form
    3,112.85/4,295.49 = 1,933.70/x
  3. Step 3: Cross multiply
    3,112.85x = 4,295.49 × 1,933.70
  4. Step 4: Simplify right side
    3,112.85x = 8,306,189.01
  5. Step 5: Solve for x
    x = 8,306,189.01/3,112.85
  6. Step 6: Final answer
    x = 2,668.36

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1.5x scale

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.