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Finding the Fourth Proportional to 6,752.56, 10,128.72 and 2,135.56

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Solution

The fourth proportional to 6,752.56, 10,128.72 and 2,135.56 is: 3,203.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,752.56 : 10,128.72 = 2,135.56 : x
  2. Step 2: Convert to fraction form
    6,752.56/10,128.72 = 2,135.56/x
  3. Step 3: Cross multiply
    6,752.56x = 10,128.72 × 2,135.56
  4. Step 4: Simplify right side
    6,752.56x = 21,630,489.28
  5. Step 5: Solve for x
    x = 21,630,489.28/6,752.56
  6. Step 6: Final answer
    x = 3,203.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.