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Finding the Fourth Proportional to 5,579.88, 8,365.32 and 3,820.56

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Solution

The fourth proportional to 5,579.88, 8,365.32 and 3,820.56 is: 5,727.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,579.88 : 8,365.32 = 3,820.56 : x
  2. Step 2: Convert to fraction form
    5,579.88/8,365.32 = 3,820.56/x
  3. Step 3: Cross multiply
    5,579.88x = 8,365.32 × 3,820.56
  4. Step 4: Simplify right side
    5,579.88x = 31,960,206.98
  5. Step 5: Solve for x
    x = 31,960,206.98/5,579.88
  6. Step 6: Final answer
    x = 5,727.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.