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Finding the Fourth Proportional to 5,618.63, 7,753.77 and 3,100.82

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Solution

The fourth proportional to 5,618.63, 7,753.77 and 3,100.82 is: 4,279.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.63 : 7,753.77 = 3,100.82 : x
  2. Step 2: Convert to fraction form
    5,618.63/7,753.77 = 3,100.82/x
  3. Step 3: Cross multiply
    5,618.63x = 7,753.77 × 3,100.82
  4. Step 4: Simplify right side
    5,618.63x = 24,043,045.09
  5. Step 5: Solve for x
    x = 24,043,045.09/5,618.63
  6. Step 6: Final answer
    x = 4,279.17

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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.