Home / 6,936.78-10,400.31-2,553.67

Finding the Fourth Proportional to 6,936.78, 10,400.31 and 2,553.67

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Solution

The fourth proportional to 6,936.78, 10,400.31 and 2,553.67 is: 3,828.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,936.78 : 10,400.31 = 2,553.67 : x
  2. Step 2: Convert to fraction form
    6,936.78/10,400.31 = 2,553.67/x
  3. Step 3: Cross multiply
    6,936.78x = 10,400.31 × 2,553.67
  4. Step 4: Simplify right side
    6,936.78x = 26,558,959.64
  5. Step 5: Solve for x
    x = 26,558,959.64/6,936.78
  6. Step 6: Final answer
    x = 3,828.72

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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.