Home / 6,455.25-8,906.87-3,801.69

Finding the Fourth Proportional to 6,455.25, 8,906.87 and 3,801.69

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Solution

The fourth proportional to 6,455.25, 8,906.87 and 3,801.69 is: 5,245.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,455.25 : 8,906.87 = 3,801.69 : x
  2. Step 2: Convert to fraction form
    6,455.25/8,906.87 = 3,801.69/x
  3. Step 3: Cross multiply
    6,455.25x = 8,906.87 × 3,801.69
  4. Step 4: Simplify right side
    6,455.25x = 33,861,168.11
  5. Step 5: Solve for x
    x = 33,861,168.11/6,455.25
  6. Step 6: Final answer
    x = 5,245.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.