Home / 2,763.99-4,145.83-1,120.09

Finding the Fourth Proportional to 2,763.99, 4,145.83 and 1,120.09

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Solution

The fourth proportional to 2,763.99, 4,145.83 and 1,120.09 is: 1,680.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,763.99 : 4,145.83 = 1,120.09 : x
  2. Step 2: Convert to fraction form
    2,763.99/4,145.83 = 1,120.09/x
  3. Step 3: Cross multiply
    2,763.99x = 4,145.83 × 1,120.09
  4. Step 4: Simplify right side
    2,763.99x = 4,643,697.12
  5. Step 5: Solve for x
    x = 4,643,697.12/2,763.99
  6. Step 6: Final answer
    x = 1,680.07

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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.