Home / 3,103.80-4,284.54-2,057.28

Finding the Fourth Proportional to 3,103.80, 4,284.54 and 2,057.28

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Solution

The fourth proportional to 3,103.80, 4,284.54 and 2,057.28 is: 2,839.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,103.80 : 4,284.54 = 2,057.28 : x
  2. Step 2: Convert to fraction form
    3,103.80/4,284.54 = 2,057.28/x
  3. Step 3: Cross multiply
    3,103.80x = 4,284.54 × 2,057.28
  4. Step 4: Simplify right side
    3,103.80x = 8,814,498.45
  5. Step 5: Solve for x
    x = 8,814,498.45/3,103.80
  6. Step 6: Final answer
    x = 2,839.91

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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.