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Finding the Fourth Proportional to 3,944.03, 5,442.81 and 2,175.62

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Solution

The fourth proportional to 3,944.03, 5,442.81 and 2,175.62 is: 3,002.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,944.03 : 5,442.81 = 2,175.62 : x
  2. Step 2: Convert to fraction form
    3,944.03/5,442.81 = 2,175.62/x
  3. Step 3: Cross multiply
    3,944.03x = 5,442.81 × 2,175.62
  4. Step 4: Simplify right side
    3,944.03x = 11,841,491.74
  5. Step 5: Solve for x
    x = 11,841,491.74/3,944.03
  6. Step 6: Final answer
    x = 3,002.38

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1.5x scale

Why These Related Problems?

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