Home / 3,521.26-4,857.78-2,028.88

Finding the Fourth Proportional to 3,521.26, 4,857.78 and 2,028.88

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Solution

The fourth proportional to 3,521.26, 4,857.78 and 2,028.88 is: 2,798.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.26 : 4,857.78 = 2,028.88 : x
  2. Step 2: Convert to fraction form
    3,521.26/4,857.78 = 2,028.88/x
  3. Step 3: Cross multiply
    3,521.26x = 4,857.78 × 2,028.88
  4. Step 4: Simplify right side
    3,521.26x = 9,855,852.69
  5. Step 5: Solve for x
    x = 9,855,852.69/3,521.26
  6. Step 6: Final answer
    x = 2,798.96

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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.