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Finding the Fourth Proportional to 4,302, 6,453.12 and 1,380.60

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Solution

The fourth proportional to 4,302, 6,453.12 and 1,380.60 is: 2,070.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,302 : 6,453.12 = 1,380.60 : x
  2. Step 2: Convert to fraction form
    4,302/6,453.12 = 1,380.60/x
  3. Step 3: Cross multiply
    4,302x = 6,453.12 × 1,380.60
  4. Step 4: Simplify right side
    4,302x = 8,909,177.47
  5. Step 5: Solve for x
    x = 8,909,177.47/4,302
  6. Step 6: Final answer
    x = 2,070.94

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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.