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Finding the Fourth Proportional to 8,150.40, 12,230.40 and 2,955.60

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Solution

The fourth proportional to 8,150.40, 12,230.40 and 2,955.60 is: 4,435.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,150.40 : 12,230.40 = 2,955.60 : x
  2. Step 2: Convert to fraction form
    8,150.40/12,230.40 = 2,955.60/x
  3. Step 3: Cross multiply
    8,150.40x = 12,230.40 × 2,955.60
  4. Step 4: Simplify right side
    8,150.40x = 36,148,170.24
  5. Step 5: Solve for x
    x = 36,148,170.24/8,150.40
  6. Step 6: Final answer
    x = 4,435.14

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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.