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Finding the Fourth Proportional to 3,387.69, 5,082.98 and 1,745.37

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Solution

The fourth proportional to 3,387.69, 5,082.98 and 1,745.37 is: 2,618.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.69 : 5,082.98 = 1,745.37 : x
  2. Step 2: Convert to fraction form
    3,387.69/5,082.98 = 1,745.37/x
  3. Step 3: Cross multiply
    3,387.69x = 5,082.98 × 1,745.37
  4. Step 4: Simplify right side
    3,387.69x = 8,871,672.08
  5. Step 5: Solve for x
    x = 8,871,672.08/3,387.69
  6. Step 6: Final answer
    x = 2,618.80

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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.