Home / 6,922.86-10,388.64-3,638.28

Finding the Fourth Proportional to 6,922.86, 10,388.64 and 3,638.28

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Solution

The fourth proportional to 6,922.86, 10,388.64 and 3,638.28 is: 5,459.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,922.86 : 10,388.64 = 3,638.28 : x
  2. Step 2: Convert to fraction form
    6,922.86/10,388.64 = 3,638.28/x
  3. Step 3: Cross multiply
    6,922.86x = 10,388.64 × 3,638.28
  4. Step 4: Simplify right side
    6,922.86x = 37,796,781.14
  5. Step 5: Solve for x
    x = 37,796,781.14/6,922.86
  6. Step 6: Final answer
    x = 5,459.71

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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.