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Finding the Fourth Proportional to 2,930.16, 4,396.16 and 1,761.44

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Solution

The fourth proportional to 2,930.16, 4,396.16 and 1,761.44 is: 2,642.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.16 : 4,396.16 = 1,761.44 : x
  2. Step 2: Convert to fraction form
    2,930.16/4,396.16 = 1,761.44/x
  3. Step 3: Cross multiply
    2,930.16x = 4,396.16 × 1,761.44
  4. Step 4: Simplify right side
    2,930.16x = 7,743,572.07
  5. Step 5: Solve for x
    x = 7,743,572.07/2,930.16
  6. Step 6: Final answer
    x = 2,642.71

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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.