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Finding the Fourth Proportional to 5,553.50, 7,663.84 and 3,069.50

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Solution

The fourth proportional to 5,553.50, 7,663.84 and 3,069.50 is: 4,235.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,553.50 : 7,663.84 = 3,069.50 : x
  2. Step 2: Convert to fraction form
    5,553.50/7,663.84 = 3,069.50/x
  3. Step 3: Cross multiply
    5,553.50x = 7,663.84 × 3,069.50
  4. Step 4: Simplify right side
    5,553.50x = 23,524,156.88
  5. Step 5: Solve for x
    x = 23,524,156.88/5,553.50
  6. Step 6: Final answer
    x = 4,235.92

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1.5x scale

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.