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Finding the Fourth Proportional to 7,400.99, 10,213.19 and 4,043.81

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Solution

The fourth proportional to 7,400.99, 10,213.19 and 4,043.81 is: 5,580.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400.99 : 10,213.19 = 4,043.81 : x
  2. Step 2: Convert to fraction form
    7,400.99/10,213.19 = 4,043.81/x
  3. Step 3: Cross multiply
    7,400.99x = 10,213.19 × 4,043.81
  4. Step 4: Simplify right side
    7,400.99x = 41,300,162.88
  5. Step 5: Solve for x
    x = 41,300,162.88/7,400.99
  6. Step 6: Final answer
    x = 5,580.36

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.