Home / 3,911.40-5,861.52-2,936.34

Finding the Fourth Proportional to 3,911.40, 5,861.52 and 2,936.34

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Solution

The fourth proportional to 3,911.40, 5,861.52 and 2,936.34 is: 4,400.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.40 : 5,861.52 = 2,936.34 : x
  2. Step 2: Convert to fraction form
    3,911.40/5,861.52 = 2,936.34/x
  3. Step 3: Cross multiply
    3,911.40x = 5,861.52 × 2,936.34
  4. Step 4: Simplify right side
    3,911.40x = 17,211,415.64
  5. Step 5: Solve for x
    x = 17,211,415.64/3,911.40
  6. Step 6: Final answer
    x = 4,400.32

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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.