Home / 3,489.24-4,810.68-2,857.44

Finding the Fourth Proportional to 3,489.24, 4,810.68 and 2,857.44

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Solution

The fourth proportional to 3,489.24, 4,810.68 and 2,857.44 is: 3,939.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.24 : 4,810.68 = 2,857.44 : x
  2. Step 2: Convert to fraction form
    3,489.24/4,810.68 = 2,857.44/x
  3. Step 3: Cross multiply
    3,489.24x = 4,810.68 × 2,857.44
  4. Step 4: Simplify right side
    3,489.24x = 13,746,229.46
  5. Step 5: Solve for x
    x = 13,746,229.46/3,489.24
  6. Step 6: Final answer
    x = 3,939.61

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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.