Home / 6,876.87-10,313.76-1,945.38

Finding the Fourth Proportional to 6,876.87, 10,313.76 and 1,945.38

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Solution

The fourth proportional to 6,876.87, 10,313.76 and 1,945.38 is: 2,917.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,876.87 : 10,313.76 = 1,945.38 : x
  2. Step 2: Convert to fraction form
    6,876.87/10,313.76 = 1,945.38/x
  3. Step 3: Cross multiply
    6,876.87x = 10,313.76 × 1,945.38
  4. Step 4: Simplify right side
    6,876.87x = 20,064,182.43
  5. Step 5: Solve for x
    x = 20,064,182.43/6,876.87
  6. Step 6: Final answer
    x = 2,917.63

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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.