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Finding the Fourth Proportional to 7,160.99, 10,741.05 and 4,388.09

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Solution

The fourth proportional to 7,160.99, 10,741.05 and 4,388.09 is: 6,581.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160.99 : 10,741.05 = 4,388.09 : x
  2. Step 2: Convert to fraction form
    7,160.99/10,741.05 = 4,388.09/x
  3. Step 3: Cross multiply
    7,160.99x = 10,741.05 × 4,388.09
  4. Step 4: Simplify right side
    7,160.99x = 47,132,640.39
  5. Step 5: Solve for x
    x = 47,132,640.39/7,160.99
  6. Step 6: Final answer
    x = 6,581.87

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.