Home / 6,081.53-9,120.99-1,921.86

Finding the Fourth Proportional to 6,081.53, 9,120.99 and 1,921.86

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Solution

The fourth proportional to 6,081.53, 9,120.99 and 1,921.86 is: 2,882.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,081.53 : 9,120.99 = 1,921.86 : x
  2. Step 2: Convert to fraction form
    6,081.53/9,120.99 = 1,921.86/x
  3. Step 3: Cross multiply
    6,081.53x = 9,120.99 × 1,921.86
  4. Step 4: Simplify right side
    6,081.53x = 17,529,265.84
  5. Step 5: Solve for x
    x = 17,529,265.84/6,081.53
  6. Step 6: Final answer
    x = 2,882.38

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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.