Home / 3,112.74-4,295.43-1,786.23

Finding the Fourth Proportional to 3,112.74, 4,295.43 and 1,786.23

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Solution

The fourth proportional to 3,112.74, 4,295.43 and 1,786.23 is: 2,464.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.74 : 4,295.43 = 1,786.23 : x
  2. Step 2: Convert to fraction form
    3,112.74/4,295.43 = 1,786.23/x
  3. Step 3: Cross multiply
    3,112.74x = 4,295.43 × 1,786.23
  4. Step 4: Simplify right side
    3,112.74x = 7,672,625.93
  5. Step 5: Solve for x
    x = 7,672,625.93/3,112.74
  6. Step 6: Final answer
    x = 2,464.91

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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.