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Finding the Fourth Proportional to 6,784.20, 10,168.20 and 3,495.60

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Solution

The fourth proportional to 6,784.20, 10,168.20 and 3,495.60 is: 5,239.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,784.20 : 10,168.20 = 3,495.60 : x
  2. Step 2: Convert to fraction form
    6,784.20/10,168.20 = 3,495.60/x
  3. Step 3: Cross multiply
    6,784.20x = 10,168.20 × 3,495.60
  4. Step 4: Simplify right side
    6,784.20x = 35,543,959.92
  5. Step 5: Solve for x
    x = 35,543,959.92/6,784.20
  6. Step 6: Final answer
    x = 5,239.23

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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.