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Finding the Fourth Proportional to 8,002.22, 12,004.54 and 2,806.88

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Solution

The fourth proportional to 8,002.22, 12,004.54 and 2,806.88 is: 4,210.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,002.22 : 12,004.54 = 2,806.88 : x
  2. Step 2: Convert to fraction form
    8,002.22/12,004.54 = 2,806.88/x
  3. Step 3: Cross multiply
    8,002.22x = 12,004.54 × 2,806.88
  4. Step 4: Simplify right side
    8,002.22x = 33,695,236.20
  5. Step 5: Solve for x
    x = 33,695,236.20/8,002.22
  6. Step 6: Final answer
    x = 4,210.74

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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.