Home / 5,629.92-8,440.80-1,732.08

Finding the Fourth Proportional to 5,629.92, 8,440.80 and 1,732.08

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Solution

The fourth proportional to 5,629.92, 8,440.80 and 1,732.08 is: 2,596.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,629.92 : 8,440.80 = 1,732.08 : x
  2. Step 2: Convert to fraction form
    5,629.92/8,440.80 = 1,732.08/x
  3. Step 3: Cross multiply
    5,629.92x = 8,440.80 × 1,732.08
  4. Step 4: Simplify right side
    5,629.92x = 14,620,140.86
  5. Step 5: Solve for x
    x = 14,620,140.86/5,629.92
  6. Step 6: Final answer
    x = 2,596.86

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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.