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Finding the Fourth Proportional to 4,885.55, 7,330.75 and 3,899.37

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Solution

The fourth proportional to 4,885.55, 7,330.75 and 3,899.37 is: 5,850.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,885.55 : 7,330.75 = 3,899.37 : x
  2. Step 2: Convert to fraction form
    4,885.55/7,330.75 = 3,899.37/x
  3. Step 3: Cross multiply
    4,885.55x = 7,330.75 × 3,899.37
  4. Step 4: Simplify right side
    4,885.55x = 28,585,296.88
  5. Step 5: Solve for x
    x = 28,585,296.88/4,885.55
  6. Step 6: Final answer
    x = 5,850.99

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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.