Home / 2,700.12-4,049.37-851.70

Finding the Fourth Proportional to 2,700.12, 4,049.37 and 851.70

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Solution

The fourth proportional to 2,700.12, 4,049.37 and 851.70 is: 1,277.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,700.12 : 4,049.37 = 851.70 : x
  2. Step 2: Convert to fraction form
    2,700.12/4,049.37 = 851.70/x
  3. Step 3: Cross multiply
    2,700.12x = 4,049.37 × 851.70
  4. Step 4: Simplify right side
    2,700.12x = 3,448,848.43
  5. Step 5: Solve for x
    x = 3,448,848.43/2,700.12
  6. Step 6: Final answer
    x = 1,277.29

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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.