Home / 6,120.83-9,181.85-1,959.79

Finding the Fourth Proportional to 6,120.83, 9,181.85 and 1,959.79

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Solution

The fourth proportional to 6,120.83, 9,181.85 and 1,959.79 is: 2,939.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,120.83 : 9,181.85 = 1,959.79 : x
  2. Step 2: Convert to fraction form
    6,120.83/9,181.85 = 1,959.79/x
  3. Step 3: Cross multiply
    6,120.83x = 9,181.85 × 1,959.79
  4. Step 4: Simplify right side
    6,120.83x = 17,994,497.81
  5. Step 5: Solve for x
    x = 17,994,497.81/6,120.83
  6. Step 6: Final answer
    x = 2,939.88

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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.