Home / 6,453.20-9,679.80-3,164.60

Finding the Fourth Proportional to 6,453.20, 9,679.80 and 3,164.60

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Solution

The fourth proportional to 6,453.20, 9,679.80 and 3,164.60 is: 4,746.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,453.20 : 9,679.80 = 3,164.60 : x
  2. Step 2: Convert to fraction form
    6,453.20/9,679.80 = 3,164.60/x
  3. Step 3: Cross multiply
    6,453.20x = 9,679.80 × 3,164.60
  4. Step 4: Simplify right side
    6,453.20x = 30,632,695.08
  5. Step 5: Solve for x
    x = 30,632,695.08/6,453.20
  6. Step 6: Final answer
    x = 4,746.90

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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.