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Finding the Fourth Proportional to 5,507.56, 7,600.49 and 2,989.69

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Solution

The fourth proportional to 5,507.56, 7,600.49 and 2,989.69 is: 4,125.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,507.56 : 7,600.49 = 2,989.69 : x
  2. Step 2: Convert to fraction form
    5,507.56/7,600.49 = 2,989.69/x
  3. Step 3: Cross multiply
    5,507.56x = 7,600.49 × 2,989.69
  4. Step 4: Simplify right side
    5,507.56x = 22,723,108.95
  5. Step 5: Solve for x
    x = 22,723,108.95/5,507.56
  6. Step 6: Final answer
    x = 4,125.80

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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.