Home / 4,313.92-6,469.52-1,391.56

Finding the Fourth Proportional to 4,313.92, 6,469.52 and 1,391.56

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Solution

The fourth proportional to 4,313.92, 6,469.52 and 1,391.56 is: 2,086.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,313.92 : 6,469.52 = 1,391.56 : x
  2. Step 2: Convert to fraction form
    4,313.92/6,469.52 = 1,391.56/x
  3. Step 3: Cross multiply
    4,313.92x = 6,469.52 × 1,391.56
  4. Step 4: Simplify right side
    4,313.92x = 9,002,725.25
  5. Step 5: Solve for x
    x = 9,002,725.25/4,313.92
  6. Step 6: Final answer
    x = 2,086.90

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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.