Home / 3,109.22-4,282.05-2,580.39

Finding the Fourth Proportional to 3,109.22, 4,282.05 and 2,580.39

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Solution

The fourth proportional to 3,109.22, 4,282.05 and 2,580.39 is: 3,553.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.22 : 4,282.05 = 2,580.39 : x
  2. Step 2: Convert to fraction form
    3,109.22/4,282.05 = 2,580.39/x
  3. Step 3: Cross multiply
    3,109.22x = 4,282.05 × 2,580.39
  4. Step 4: Simplify right side
    3,109.22x = 11,049,359.00
  5. Step 5: Solve for x
    x = 11,049,359.00/3,109.22
  6. Step 6: Final answer
    x = 3,553.74

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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.