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Finding the Fourth Proportional to 6,247.56, 8,621.56 and 3,453

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Solution

The fourth proportional to 6,247.56, 8,621.56 and 3,453 is: 4,765.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,247.56 : 8,621.56 = 3,453 : x
  2. Step 2: Convert to fraction form
    6,247.56/8,621.56 = 3,453/x
  3. Step 3: Cross multiply
    6,247.56x = 8,621.56 × 3,453
  4. Step 4: Simplify right side
    6,247.56x = 29,770,246.68
  5. Step 5: Solve for x
    x = 29,770,246.68/6,247.56
  6. Step 6: Final answer
    x = 4,765.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.