Home / 3,080.80-4,625.88-2,690.56

Finding the Fourth Proportional to 3,080.80, 4,625.88 and 2,690.56

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Solution

The fourth proportional to 3,080.80, 4,625.88 and 2,690.56 is: 4,039.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.80 : 4,625.88 = 2,690.56 : x
  2. Step 2: Convert to fraction form
    3,080.80/4,625.88 = 2,690.56/x
  3. Step 3: Cross multiply
    3,080.80x = 4,625.88 × 2,690.56
  4. Step 4: Simplify right side
    3,080.80x = 12,446,207.69
  5. Step 5: Solve for x
    x = 12,446,207.69/3,080.80
  6. Step 6: Final answer
    x = 4,039.93

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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.