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Finding the Fourth Proportional to 6,487.12, 8,952.64 and 3,692.64

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Solution

The fourth proportional to 6,487.12, 8,952.64 and 3,692.64 is: 5,096.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,487.12 : 8,952.64 = 3,692.64 : x
  2. Step 2: Convert to fraction form
    6,487.12/8,952.64 = 3,692.64/x
  3. Step 3: Cross multiply
    6,487.12x = 8,952.64 × 3,692.64
  4. Step 4: Simplify right side
    6,487.12x = 33,058,876.57
  5. Step 5: Solve for x
    x = 33,058,876.57/6,487.12
  6. Step 6: Final answer
    x = 5,096.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.