Home / 2,080.05-3,110.90-1,850.55

Finding the Fourth Proportional to 2,080.05, 3,110.90 and 1,850.55

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Solution

The fourth proportional to 2,080.05, 3,110.90 and 1,850.55 is: 2,767.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.05 : 3,110.90 = 1,850.55 : x
  2. Step 2: Convert to fraction form
    2,080.05/3,110.90 = 1,850.55/x
  3. Step 3: Cross multiply
    2,080.05x = 3,110.90 × 1,850.55
  4. Step 4: Simplify right side
    2,080.05x = 5,756,866.74
  5. Step 5: Solve for x
    x = 5,756,866.74/2,080.05
  6. Step 6: Final answer
    x = 2,767.66

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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.