Home / 7,180.96-10,748.39-3,840.86

Finding the Fourth Proportional to 7,180.96, 10,748.39 and 3,840.86

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Solution

The fourth proportional to 7,180.96, 10,748.39 and 3,840.86 is: 5,748.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.96 : 10,748.39 = 3,840.86 : x
  2. Step 2: Convert to fraction form
    7,180.96/10,748.39 = 3,840.86/x
  3. Step 3: Cross multiply
    7,180.96x = 10,748.39 × 3,840.86
  4. Step 4: Simplify right side
    7,180.96x = 41,283,061.22
  5. Step 5: Solve for x
    x = 41,283,061.22/7,180.96
  6. Step 6: Final answer
    x = 5,748.96

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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.