Home / 4,418.80-6,628.18-2,103.28

Finding the Fourth Proportional to 4,418.80, 6,628.18 and 2,103.28

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Solution

The fourth proportional to 4,418.80, 6,628.18 and 2,103.28 is: 3,154.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,418.80 : 6,628.18 = 2,103.28 : x
  2. Step 2: Convert to fraction form
    4,418.80/6,628.18 = 2,103.28/x
  3. Step 3: Cross multiply
    4,418.80x = 6,628.18 × 2,103.28
  4. Step 4: Simplify right side
    4,418.80x = 13,940,918.43
  5. Step 5: Solve for x
    x = 13,940,918.43/4,418.80
  6. Step 6: Final answer
    x = 3,154.91

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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.