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Finding the Fourth Proportional to 5,116.73, 7,061.24 and 2,878.49

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Solution

The fourth proportional to 5,116.73, 7,061.24 and 2,878.49 is: 3,972.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.73 : 7,061.24 = 2,878.49 : x
  2. Step 2: Convert to fraction form
    5,116.73/7,061.24 = 2,878.49/x
  3. Step 3: Cross multiply
    5,116.73x = 7,061.24 × 2,878.49
  4. Step 4: Simplify right side
    5,116.73x = 20,325,733.58
  5. Step 5: Solve for x
    x = 20,325,733.58/5,116.73
  6. Step 6: Final answer
    x = 3,972.41

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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.