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Finding the Fourth Proportional to 5,553.56, 7,666.38 and 4,227.32

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Solution

The fourth proportional to 5,553.56, 7,666.38 and 4,227.32 is: 5,835.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,553.56 : 7,666.38 = 4,227.32 : x
  2. Step 2: Convert to fraction form
    5,553.56/7,666.38 = 4,227.32/x
  3. Step 3: Cross multiply
    5,553.56x = 7,666.38 × 4,227.32
  4. Step 4: Simplify right side
    5,553.56x = 32,408,241.50
  5. Step 5: Solve for x
    x = 32,408,241.50/5,553.56
  6. Step 6: Final answer
    x = 5,835.58

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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.