Home / 3,610.24-4,986.83-2,489.20

Finding the Fourth Proportional to 3,610.24, 4,986.83 and 2,489.20

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Solution

The fourth proportional to 3,610.24, 4,986.83 and 2,489.20 is: 3,438.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.24 : 4,986.83 = 2,489.20 : x
  2. Step 2: Convert to fraction form
    3,610.24/4,986.83 = 2,489.20/x
  3. Step 3: Cross multiply
    3,610.24x = 4,986.83 × 2,489.20
  4. Step 4: Simplify right side
    3,610.24x = 12,413,217.24
  5. Step 5: Solve for x
    x = 12,413,217.24/3,610.24
  6. Step 6: Final answer
    x = 3,438.34

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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.