Home / 3,610.55-4,982.79-2,117.92

Finding the Fourth Proportional to 3,610.55, 4,982.79 and 2,117.92

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Solution

The fourth proportional to 3,610.55, 4,982.79 and 2,117.92 is: 2,922.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.55 : 4,982.79 = 2,117.92 : x
  2. Step 2: Convert to fraction form
    3,610.55/4,982.79 = 2,117.92/x
  3. Step 3: Cross multiply
    3,610.55x = 4,982.79 × 2,117.92
  4. Step 4: Simplify right side
    3,610.55x = 10,553,163.48
  5. Step 5: Solve for x
    x = 10,553,163.48/3,610.55
  6. Step 6: Final answer
    x = 2,922.87

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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.