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Finding the Fourth Proportional to 5,473.50, 7,553.43 and 2,989.50

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Solution

The fourth proportional to 5,473.50, 7,553.43 and 2,989.50 is: 4,125.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,473.50 : 7,553.43 = 2,989.50 : x
  2. Step 2: Convert to fraction form
    5,473.50/7,553.43 = 2,989.50/x
  3. Step 3: Cross multiply
    5,473.50x = 7,553.43 × 2,989.50
  4. Step 4: Simplify right side
    5,473.50x = 22,580,978.99
  5. Step 5: Solve for x
    x = 22,580,978.99/5,473.50
  6. Step 6: Final answer
    x = 4,125.51

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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.