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Finding the Fourth Proportional to 3,399.87, 4,692.07 and 1,887.51

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Solution

The fourth proportional to 3,399.87, 4,692.07 and 1,887.51 is: 2,604.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.87 : 4,692.07 = 1,887.51 : x
  2. Step 2: Convert to fraction form
    3,399.87/4,692.07 = 1,887.51/x
  3. Step 3: Cross multiply
    3,399.87x = 4,692.07 × 1,887.51
  4. Step 4: Simplify right side
    3,399.87x = 8,856,329.05
  5. Step 5: Solve for x
    x = 8,856,329.05/3,399.87
  6. Step 6: Final answer
    x = 2,604.90

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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.