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Finding the Fourth Proportional to 6,215.34, 8,577.09 and 4,629.09

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Solution

The fourth proportional to 6,215.34, 8,577.09 and 4,629.09 is: 6,388.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,215.34 : 8,577.09 = 4,629.09 : x
  2. Step 2: Convert to fraction form
    6,215.34/8,577.09 = 4,629.09/x
  3. Step 3: Cross multiply
    6,215.34x = 8,577.09 × 4,629.09
  4. Step 4: Simplify right side
    6,215.34x = 39,704,121.55
  5. Step 5: Solve for x
    x = 39,704,121.55/6,215.34
  6. Step 6: Final answer
    x = 6,388.09

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1.5x scale

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.