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Finding the Fourth Proportional to 3,766.36, 5,647.48 and 2,991.34

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Solution

The fourth proportional to 3,766.36, 5,647.48 and 2,991.34 is: 4,485.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,766.36 : 5,647.48 = 2,991.34 : x
  2. Step 2: Convert to fraction form
    3,766.36/5,647.48 = 2,991.34/x
  3. Step 3: Cross multiply
    3,766.36x = 5,647.48 × 2,991.34
  4. Step 4: Simplify right side
    3,766.36x = 16,893,532.82
  5. Step 5: Solve for x
    x = 16,893,532.82/3,766.36
  6. Step 6: Final answer
    x = 4,485.37

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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.