Home / 7,273.40-10,906.86-2,078.06

Finding the Fourth Proportional to 7,273.40, 10,906.86 and 2,078.06

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Solution

The fourth proportional to 7,273.40, 10,906.86 and 2,078.06 is: 3,116.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,273.40 : 10,906.86 = 2,078.06 : x
  2. Step 2: Convert to fraction form
    7,273.40/10,906.86 = 2,078.06/x
  3. Step 3: Cross multiply
    7,273.40x = 10,906.86 × 2,078.06
  4. Step 4: Simplify right side
    7,273.40x = 22,665,109.49
  5. Step 5: Solve for x
    x = 22,665,109.49/7,273.40
  6. Step 6: Final answer
    x = 3,116.16

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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.