Home / 5,786.72-8,669.20-2,861.60

Finding the Fourth Proportional to 5,786.72, 8,669.20 and 2,861.60

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Solution

The fourth proportional to 5,786.72, 8,669.20 and 2,861.60 is: 4,287.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,786.72 : 8,669.20 = 2,861.60 : x
  2. Step 2: Convert to fraction form
    5,786.72/8,669.20 = 2,861.60/x
  3. Step 3: Cross multiply
    5,786.72x = 8,669.20 × 2,861.60
  4. Step 4: Simplify right side
    5,786.72x = 24,807,782.72
  5. Step 5: Solve for x
    x = 24,807,782.72/5,786.72
  6. Step 6: Final answer
    x = 4,287.02

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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.