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Finding the Fourth Proportional to 6,720.20, 10,079.10 and 4,250.60

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Solution

The fourth proportional to 6,720.20, 10,079.10 and 4,250.60 is: 6,375.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720.20 : 10,079.10 = 4,250.60 : x
  2. Step 2: Convert to fraction form
    6,720.20/10,079.10 = 4,250.60/x
  3. Step 3: Cross multiply
    6,720.20x = 10,079.10 × 4,250.60
  4. Step 4: Simplify right side
    6,720.20x = 42,842,222.46
  5. Step 5: Solve for x
    x = 42,842,222.46/6,720.20
  6. Step 6: Final answer
    x = 6,375.14

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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.