Home / 2,790.09-4,181.55-1,144.66

Finding the Fourth Proportional to 2,790.09, 4,181.55 and 1,144.66

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Solution

The fourth proportional to 2,790.09, 4,181.55 and 1,144.66 is: 1,715.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.09 : 4,181.55 = 1,144.66 : x
  2. Step 2: Convert to fraction form
    2,790.09/4,181.55 = 1,144.66/x
  3. Step 3: Cross multiply
    2,790.09x = 4,181.55 × 1,144.66
  4. Step 4: Simplify right side
    2,790.09x = 4,786,453.02
  5. Step 5: Solve for x
    x = 4,786,453.02/2,790.09
  6. Step 6: Final answer
    x = 1,715.52

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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.