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Finding the Fourth Proportional to 3,770, 5,202.66 and 2,091.44

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Solution

The fourth proportional to 3,770, 5,202.66 and 2,091.44 is: 2,886.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,770 : 5,202.66 = 2,091.44 : x
  2. Step 2: Convert to fraction form
    3,770/5,202.66 = 2,091.44/x
  3. Step 3: Cross multiply
    3,770x = 5,202.66 × 2,091.44
  4. Step 4: Simplify right side
    3,770x = 10,881,051.23
  5. Step 5: Solve for x
    x = 10,881,051.23/3,770
  6. Step 6: Final answer
    x = 2,886.22

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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.