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Finding the Fourth Proportional to 3,889.45, 5,832.03 and 2,658.25

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Solution

The fourth proportional to 3,889.45, 5,832.03 and 2,658.25 is: 3,985.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889.45 : 5,832.03 = 2,658.25 : x
  2. Step 2: Convert to fraction form
    3,889.45/5,832.03 = 2,658.25/x
  3. Step 3: Cross multiply
    3,889.45x = 5,832.03 × 2,658.25
  4. Step 4: Simplify right side
    3,889.45x = 15,502,993.75
  5. Step 5: Solve for x
    x = 15,502,993.75/3,889.45
  6. Step 6: Final answer
    x = 3,985.91

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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.