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Finding the Fourth Proportional to 6,803.66, 10,200.69 and 2,640.20

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Solution

The fourth proportional to 6,803.66, 10,200.69 and 2,640.20 is: 3,958.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,803.66 : 10,200.69 = 2,640.20 : x
  2. Step 2: Convert to fraction form
    6,803.66/10,200.69 = 2,640.20/x
  3. Step 3: Cross multiply
    6,803.66x = 10,200.69 × 2,640.20
  4. Step 4: Simplify right side
    6,803.66x = 26,931,861.74
  5. Step 5: Solve for x
    x = 26,931,861.74/6,803.66
  6. Step 6: Final answer
    x = 3,958.44

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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.