Home / 3,112.48-4,297.22-1,935.15

Finding the Fourth Proportional to 3,112.48, 4,297.22 and 1,935.15

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Solution

The fourth proportional to 3,112.48, 4,297.22 and 1,935.15 is: 2,671.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.48 : 4,297.22 = 1,935.15 : x
  2. Step 2: Convert to fraction form
    3,112.48/4,297.22 = 1,935.15/x
  3. Step 3: Cross multiply
    3,112.48x = 4,297.22 × 1,935.15
  4. Step 4: Simplify right side
    3,112.48x = 8,315,765.28
  5. Step 5: Solve for x
    x = 8,315,765.28/3,112.48
  6. Step 6: Final answer
    x = 2,671.75

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Double scale
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Similar ratio
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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.