Home / 6,121.08-9,181.62-1,961.52

Finding the Fourth Proportional to 6,121.08, 9,181.62 and 1,961.52

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Solution

The fourth proportional to 6,121.08, 9,181.62 and 1,961.52 is: 2,942.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.08 : 9,181.62 = 1,961.52 : x
  2. Step 2: Convert to fraction form
    6,121.08/9,181.62 = 1,961.52/x
  3. Step 3: Cross multiply
    6,121.08x = 9,181.62 × 1,961.52
  4. Step 4: Simplify right side
    6,121.08x = 18,009,931.26
  5. Step 5: Solve for x
    x = 18,009,931.26/6,121.08
  6. Step 6: Final answer
    x = 2,942.28

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.