Home / 2,175.70-3,261.02-1,080.76

Finding the Fourth Proportional to 2,175.70, 3,261.02 and 1,080.76

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Solution

The fourth proportional to 2,175.70, 3,261.02 and 1,080.76 is: 1,619.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.70 : 3,261.02 = 1,080.76 : x
  2. Step 2: Convert to fraction form
    2,175.70/3,261.02 = 1,080.76/x
  3. Step 3: Cross multiply
    2,175.70x = 3,261.02 × 1,080.76
  4. Step 4: Simplify right side
    2,175.70x = 3,524,379.98
  5. Step 5: Solve for x
    x = 3,524,379.98/2,175.70
  6. Step 6: Final answer
    x = 1,619.88

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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.