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Finding the Fourth Proportional to 3,112.46, 4,295.49 and 1,786.46

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Solution

The fourth proportional to 3,112.46, 4,295.49 and 1,786.46 is: 2,465.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.46 : 4,295.49 = 1,786.46 : x
  2. Step 2: Convert to fraction form
    3,112.46/4,295.49 = 1,786.46/x
  3. Step 3: Cross multiply
    3,112.46x = 4,295.49 × 1,786.46
  4. Step 4: Simplify right side
    3,112.46x = 7,673,721.07
  5. Step 5: Solve for x
    x = 7,673,721.07/3,112.46
  6. Step 6: Final answer
    x = 2,465.48

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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.