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Finding the Fourth Proportional to 7,183.60, 9,912 and 4,350.40

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Solution

The fourth proportional to 7,183.60, 9,912 and 4,350.40 is: 6,002.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,183.60 : 9,912 = 4,350.40 : x
  2. Step 2: Convert to fraction form
    7,183.60/9,912 = 4,350.40/x
  3. Step 3: Cross multiply
    7,183.60x = 9,912 × 4,350.40
  4. Step 4: Simplify right side
    7,183.60x = 43,121,164.80
  5. Step 5: Solve for x
    x = 43,121,164.80/7,183.60
  6. Step 6: Final answer
    x = 6,002.72

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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.