Home / 7,107.20-10,660.76-2,176.86

Finding the Fourth Proportional to 7,107.20, 10,660.76 and 2,176.86

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Solution

The fourth proportional to 7,107.20, 10,660.76 and 2,176.86 is: 3,265.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,107.20 : 10,660.76 = 2,176.86 : x
  2. Step 2: Convert to fraction form
    7,107.20/10,660.76 = 2,176.86/x
  3. Step 3: Cross multiply
    7,107.20x = 10,660.76 × 2,176.86
  4. Step 4: Simplify right side
    7,107.20x = 23,206,982.01
  5. Step 5: Solve for x
    x = 23,206,982.01/7,107.20
  6. Step 6: Final answer
    x = 3,265.28

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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.