Home / 7,327.90-10,972.41-3,857.86

Finding the Fourth Proportional to 7,327.90, 10,972.41 and 3,857.86

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Solution

The fourth proportional to 7,327.90, 10,972.41 and 3,857.86 is: 5,776.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,327.90 : 10,972.41 = 3,857.86 : x
  2. Step 2: Convert to fraction form
    7,327.90/10,972.41 = 3,857.86/x
  3. Step 3: Cross multiply
    7,327.90x = 10,972.41 × 3,857.86
  4. Step 4: Simplify right side
    7,327.90x = 42,330,021.64
  5. Step 5: Solve for x
    x = 42,330,021.64/7,327.90
  6. Step 6: Final answer
    x = 5,776.56

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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.