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Finding the Fourth Proportional to 5,125.88, 7,692.06 and 2,938.88

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Solution

The fourth proportional to 5,125.88, 7,692.06 and 2,938.88 is: 4,410.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.88 : 7,692.06 = 2,938.88 : x
  2. Step 2: Convert to fraction form
    5,125.88/7,692.06 = 2,938.88/x
  3. Step 3: Cross multiply
    5,125.88x = 7,692.06 × 2,938.88
  4. Step 4: Simplify right side
    5,125.88x = 22,605,988.14
  5. Step 5: Solve for x
    x = 22,605,988.14/5,125.88
  6. Step 6: Final answer
    x = 4,410.17

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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.