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Finding the Fourth Proportional to 6,408.60, 9,614.70 and 2,712.60

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Solution

The fourth proportional to 6,408.60, 9,614.70 and 2,712.60 is: 4,069.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,408.60 : 9,614.70 = 2,712.60 : x
  2. Step 2: Convert to fraction form
    6,408.60/9,614.70 = 2,712.60/x
  3. Step 3: Cross multiply
    6,408.60x = 9,614.70 × 2,712.60
  4. Step 4: Simplify right side
    6,408.60x = 26,080,835.22
  5. Step 5: Solve for x
    x = 26,080,835.22/6,408.60
  6. Step 6: Final answer
    x = 4,069.66

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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.