Home / 3,759.56-5,187.78-2,080.70

Finding the Fourth Proportional to 3,759.56, 5,187.78 and 2,080.70

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Solution

The fourth proportional to 3,759.56, 5,187.78 and 2,080.70 is: 2,871.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.56 : 5,187.78 = 2,080.70 : x
  2. Step 2: Convert to fraction form
    3,759.56/5,187.78 = 2,080.70/x
  3. Step 3: Cross multiply
    3,759.56x = 5,187.78 × 2,080.70
  4. Step 4: Simplify right side
    3,759.56x = 10,794,187.91
  5. Step 5: Solve for x
    x = 10,794,187.91/3,759.56
  6. Step 6: Final answer
    x = 2,871.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.