Home / 7,278.31-10,917.43-2,084.19

Finding the Fourth Proportional to 7,278.31, 10,917.43 and 2,084.19

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Solution

The fourth proportional to 7,278.31, 10,917.43 and 2,084.19 is: 3,126.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.31 : 10,917.43 = 2,084.19 : x
  2. Step 2: Convert to fraction form
    7,278.31/10,917.43 = 2,084.19/x
  3. Step 3: Cross multiply
    7,278.31x = 10,917.43 × 2,084.19
  4. Step 4: Simplify right side
    7,278.31x = 22,753,998.43
  5. Step 5: Solve for x
    x = 22,753,998.43/7,278.31
  6. Step 6: Final answer
    x = 3,126.27

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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.