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Finding the Fourth Proportional to 8,087.64, 12,130.92 and 2,893.68

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Solution

The fourth proportional to 8,087.64, 12,130.92 and 2,893.68 is: 4,340.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,087.64 : 12,130.92 = 2,893.68 : x
  2. Step 2: Convert to fraction form
    8,087.64/12,130.92 = 2,893.68/x
  3. Step 3: Cross multiply
    8,087.64x = 12,130.92 × 2,893.68
  4. Step 4: Simplify right side
    8,087.64x = 35,103,000.59
  5. Step 5: Solve for x
    x = 35,103,000.59/8,087.64
  6. Step 6: Final answer
    x = 4,340.33

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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.