Home / 3,112.61-4,295.41-1,696.31

Finding the Fourth Proportional to 3,112.61, 4,295.41 and 1,696.31

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Solution

The fourth proportional to 3,112.61, 4,295.41 and 1,696.31 is: 2,340.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.61 : 4,295.41 = 1,696.31 : x
  2. Step 2: Convert to fraction form
    3,112.61/4,295.41 = 1,696.31/x
  3. Step 3: Cross multiply
    3,112.61x = 4,295.41 × 1,696.31
  4. Step 4: Simplify right side
    3,112.61x = 7,286,321.22
  5. Step 5: Solve for x
    x = 7,286,321.22/3,112.61
  6. Step 6: Final answer
    x = 2,340.91

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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.