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Finding the Fourth Proportional to 6,348.07, 8,751.20 and 4,453.78

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Solution

The fourth proportional to 6,348.07, 8,751.20 and 4,453.78 is: 6,139.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,348.07 : 8,751.20 = 4,453.78 : x
  2. Step 2: Convert to fraction form
    6,348.07/8,751.20 = 4,453.78/x
  3. Step 3: Cross multiply
    6,348.07x = 8,751.20 × 4,453.78
  4. Step 4: Simplify right side
    6,348.07x = 38,975,916.85
  5. Step 5: Solve for x
    x = 38,975,916.85/6,348.07
  6. Step 6: Final answer
    x = 6,139.81

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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.