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Finding the Fourth Proportional to 7,792.51, 10,753.68 and 4,255.78

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Solution

The fourth proportional to 7,792.51, 10,753.68 and 4,255.78 is: 5,872.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,792.51 : 10,753.68 = 4,255.78 : x
  2. Step 2: Convert to fraction form
    7,792.51/10,753.68 = 4,255.78/x
  3. Step 3: Cross multiply
    7,792.51x = 10,753.68 × 4,255.78
  4. Step 4: Simplify right side
    7,792.51x = 45,765,296.27
  5. Step 5: Solve for x
    x = 45,765,296.27/7,792.51
  6. Step 6: Final answer
    x = 5,872.99

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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.