Home / 3,104.40-4,282.40-2,109.68

Finding the Fourth Proportional to 3,104.40, 4,282.40 and 2,109.68

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Solution

The fourth proportional to 3,104.40, 4,282.40 and 2,109.68 is: 2,910.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,104.40 : 4,282.40 = 2,109.68 : x
  2. Step 2: Convert to fraction form
    3,104.40/4,282.40 = 2,109.68/x
  3. Step 3: Cross multiply
    3,104.40x = 4,282.40 × 2,109.68
  4. Step 4: Simplify right side
    3,104.40x = 9,034,493.63
  5. Step 5: Solve for x
    x = 9,034,493.63/3,104.40
  6. Step 6: Final answer
    x = 2,910.22

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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.