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Finding the Fourth Proportional to 2,566.09, 3,849.36 and 717.21

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Solution

The fourth proportional to 2,566.09, 3,849.36 and 717.21 is: 1,075.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,566.09 : 3,849.36 = 717.21 : x
  2. Step 2: Convert to fraction form
    2,566.09/3,849.36 = 717.21/x
  3. Step 3: Cross multiply
    2,566.09x = 3,849.36 × 717.21
  4. Step 4: Simplify right side
    2,566.09x = 2,760,785.97
  5. Step 5: Solve for x
    x = 2,760,785.97/2,566.09
  6. Step 6: Final answer
    x = 1,075.87

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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.