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Finding the Fourth Proportional to 6,751.60, 10,128.90 and 2,072.26

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Solution

The fourth proportional to 6,751.60, 10,128.90 and 2,072.26 is: 3,108.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,751.60 : 10,128.90 = 2,072.26 : x
  2. Step 2: Convert to fraction form
    6,751.60/10,128.90 = 2,072.26/x
  3. Step 3: Cross multiply
    6,751.60x = 10,128.90 × 2,072.26
  4. Step 4: Simplify right side
    6,751.60x = 20,989,714.31
  5. Step 5: Solve for x
    x = 20,989,714.31/6,751.60
  6. Step 6: Final answer
    x = 3,108.85

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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.