Home / 8,540.28-12,809.36-2,300.78

Finding the Fourth Proportional to 8,540.28, 12,809.36 and 2,300.78

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Solution

The fourth proportional to 8,540.28, 12,809.36 and 2,300.78 is: 3,450.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.28 : 12,809.36 = 2,300.78 : x
  2. Step 2: Convert to fraction form
    8,540.28/12,809.36 = 2,300.78/x
  3. Step 3: Cross multiply
    8,540.28x = 12,809.36 × 2,300.78
  4. Step 4: Simplify right side
    8,540.28x = 29,471,519.30
  5. Step 5: Solve for x
    x = 29,471,519.30/8,540.28
  6. Step 6: Final answer
    x = 3,450.88

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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.