Home / 2,383.38-3,289.44-1,426.22

Finding the Fourth Proportional to 2,383.38, 3,289.44 and 1,426.22

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Solution

The fourth proportional to 2,383.38, 3,289.44 and 1,426.22 is: 1,968.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,383.38 : 3,289.44 = 1,426.22 : x
  2. Step 2: Convert to fraction form
    2,383.38/3,289.44 = 1,426.22/x
  3. Step 3: Cross multiply
    2,383.38x = 3,289.44 × 1,426.22
  4. Step 4: Simplify right side
    2,383.38x = 4,691,465.12
  5. Step 5: Solve for x
    x = 4,691,465.12/2,383.38
  6. Step 6: Final answer
    x = 1,968.41

Related Problems

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Half scale
Find fourth proportional to 4,766.76, 6,578.88 and 2,852.44
Double scale
Find fourth proportional to 2,384.38, 3,290.82 and 1,427.22
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.