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Finding the Fourth Proportional to 7,342.74, 10,131.72 and 4,199.16

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Solution

The fourth proportional to 7,342.74, 10,131.72 and 4,199.16 is: 5,794.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,342.74 : 10,131.72 = 4,199.16 : x
  2. Step 2: Convert to fraction form
    7,342.74/10,131.72 = 4,199.16/x
  3. Step 3: Cross multiply
    7,342.74x = 10,131.72 × 4,199.16
  4. Step 4: Simplify right side
    7,342.74x = 42,544,713.36
  5. Step 5: Solve for x
    x = 42,544,713.36/7,342.74
  6. Step 6: Final answer
    x = 5,794.12

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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.