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Finding the Fourth Proportional to 7,791.41, 10,752.21 and 4,254.72

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Solution

The fourth proportional to 7,791.41, 10,752.21 and 4,254.72 is: 5,871.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,791.41 : 10,752.21 = 4,254.72 : x
  2. Step 2: Convert to fraction form
    7,791.41/10,752.21 = 4,254.72/x
  3. Step 3: Cross multiply
    7,791.41x = 10,752.21 × 4,254.72
  4. Step 4: Simplify right side
    7,791.41x = 45,747,642.93
  5. Step 5: Solve for x
    x = 45,747,642.93/7,791.41
  6. Step 6: Final answer
    x = 5,871.55

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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.