Home / 5,170.91-7,757.66-1,661.23

Finding the Fourth Proportional to 5,170.91, 7,757.66 and 1,661.23

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Solution

The fourth proportional to 5,170.91, 7,757.66 and 1,661.23 is: 2,492.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.91 : 7,757.66 = 1,661.23 : x
  2. Step 2: Convert to fraction form
    5,170.91/7,757.66 = 1,661.23/x
  3. Step 3: Cross multiply
    5,170.91x = 7,757.66 × 1,661.23
  4. Step 4: Simplify right side
    5,170.91x = 12,887,218.73
  5. Step 5: Solve for x
    x = 12,887,218.73/5,170.91
  6. Step 6: Final answer
    x = 2,492.25

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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.