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Finding the Fourth Proportional to 6,276.67, 9,408.88 and 2,988.88

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Solution

The fourth proportional to 6,276.67, 9,408.88 and 2,988.88 is: 4,480.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,276.67 : 9,408.88 = 2,988.88 : x
  2. Step 2: Convert to fraction form
    6,276.67/9,408.88 = 2,988.88/x
  3. Step 3: Cross multiply
    6,276.67x = 9,408.88 × 2,988.88
  4. Step 4: Simplify right side
    6,276.67x = 28,122,013.25
  5. Step 5: Solve for x
    x = 28,122,013.25/6,276.67
  6. Step 6: Final answer
    x = 4,480.40

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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.