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Finding the Fourth Proportional to 5,940.32, 8,910.32 and 2,861.60

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Solution

The fourth proportional to 5,940.32, 8,910.32 and 2,861.60 is: 4,292.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,940.32 : 8,910.32 = 2,861.60 : x
  2. Step 2: Convert to fraction form
    5,940.32/8,910.32 = 2,861.60/x
  3. Step 3: Cross multiply
    5,940.32x = 8,910.32 × 2,861.60
  4. Step 4: Simplify right side
    5,940.32x = 25,497,771.71
  5. Step 5: Solve for x
    x = 25,497,771.71/5,940.32
  6. Step 6: Final answer
    x = 4,292.32

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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.