Home / 5,629.10-8,440.90-3,289.70

Finding the Fourth Proportional to 5,629.10, 8,440.90 and 3,289.70

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Solution

The fourth proportional to 5,629.10, 8,440.90 and 3,289.70 is: 4,932.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,629.10 : 8,440.90 = 3,289.70 : x
  2. Step 2: Convert to fraction form
    5,629.10/8,440.90 = 3,289.70/x
  3. Step 3: Cross multiply
    5,629.10x = 8,440.90 × 3,289.70
  4. Step 4: Simplify right side
    5,629.10x = 27,768,003.38
  5. Step 5: Solve for x
    x = 27,768,003.38/5,629.10
  6. Step 6: Final answer
    x = 4,932.94

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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.