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Finding the Fourth Proportional to 5,553, 7,663.22 and 3,069

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Solution

The fourth proportional to 5,553, 7,663.22 and 3,069 is: 4,235.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,553 : 7,663.22 = 3,069 : x
  2. Step 2: Convert to fraction form
    5,553/7,663.22 = 3,069/x
  3. Step 3: Cross multiply
    5,553x = 7,663.22 × 3,069
  4. Step 4: Simplify right side
    5,553x = 23,518,422.18
  5. Step 5: Solve for x
    x = 23,518,422.18/5,553
  6. Step 6: Final answer
    x = 4,235.26

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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.