Home / 3,181.96-4,393.38-2,122.23

Finding the Fourth Proportional to 3,181.96, 4,393.38 and 2,122.23

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Solution

The fourth proportional to 3,181.96, 4,393.38 and 2,122.23 is: 2,930.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.96 : 4,393.38 = 2,122.23 : x
  2. Step 2: Convert to fraction form
    3,181.96/4,393.38 = 2,122.23/x
  3. Step 3: Cross multiply
    3,181.96x = 4,393.38 × 2,122.23
  4. Step 4: Simplify right side
    3,181.96x = 9,323,762.84
  5. Step 5: Solve for x
    x = 9,323,762.84/3,181.96
  6. Step 6: Final answer
    x = 2,930.19

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Half scale
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Double scale
Find fourth proportional to 3,182.96, 4,394.76 and 2,123.23
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.