Home / 2,755.21-4,139.99-2,575.24

Finding the Fourth Proportional to 2,755.21, 4,139.99 and 2,575.24

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Solution

The fourth proportional to 2,755.21, 4,139.99 and 2,575.24 is: 3,869.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.21 : 4,139.99 = 2,575.24 : x
  2. Step 2: Convert to fraction form
    2,755.21/4,139.99 = 2,575.24/x
  3. Step 3: Cross multiply
    2,755.21x = 4,139.99 × 2,575.24
  4. Step 4: Simplify right side
    2,755.21x = 10,661,467.85
  5. Step 5: Solve for x
    x = 10,661,467.85/2,755.21
  6. Step 6: Final answer
    x = 3,869.57

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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.