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Finding the Fourth Proportional to 7,903.76, 11,850.76 and 3,741.20

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Solution

The fourth proportional to 7,903.76, 11,850.76 and 3,741.20 is: 5,609.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,903.76 : 11,850.76 = 3,741.20 : x
  2. Step 2: Convert to fraction form
    7,903.76/11,850.76 = 3,741.20/x
  3. Step 3: Cross multiply
    7,903.76x = 11,850.76 × 3,741.20
  4. Step 4: Simplify right side
    7,903.76x = 44,336,063.31
  5. Step 5: Solve for x
    x = 44,336,063.31/7,903.76
  6. Step 6: Final answer
    x = 5,609.49

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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.