Home / 3,112.37-4,295.17-1,786.33

Finding the Fourth Proportional to 3,112.37, 4,295.17 and 1,786.33

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Solution

The fourth proportional to 3,112.37, 4,295.17 and 1,786.33 is: 2,465.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.37 : 4,295.17 = 1,786.33 : x
  2. Step 2: Convert to fraction form
    3,112.37/4,295.17 = 1,786.33/x
  3. Step 3: Cross multiply
    3,112.37x = 4,295.17 × 1,786.33
  4. Step 4: Simplify right side
    3,112.37x = 7,672,591.03
  5. Step 5: Solve for x
    x = 7,672,591.03/3,112.37
  6. Step 6: Final answer
    x = 2,465.19

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Half scale
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Double scale
Find fourth proportional to 3,113.37, 4,296.55 and 1,787.33
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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.