Home / 2,666.21-3,680.30-1,757.79

Finding the Fourth Proportional to 2,666.21, 3,680.30 and 1,757.79

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Solution

The fourth proportional to 2,666.21, 3,680.30 and 1,757.79 is: 2,426.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.21 : 3,680.30 = 1,757.79 : x
  2. Step 2: Convert to fraction form
    2,666.21/3,680.30 = 1,757.79/x
  3. Step 3: Cross multiply
    2,666.21x = 3,680.30 × 1,757.79
  4. Step 4: Simplify right side
    2,666.21x = 6,469,198.93
  5. Step 5: Solve for x
    x = 6,469,198.93/2,666.21
  6. Step 6: Final answer
    x = 2,426.37

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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.