Home / 7,333.39-10,991.82-3,638.28

Finding the Fourth Proportional to 7,333.39, 10,991.82 and 3,638.28

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Solution

The fourth proportional to 7,333.39, 10,991.82 and 3,638.28 is: 5,453.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,333.39 : 10,991.82 = 3,638.28 : x
  2. Step 2: Convert to fraction form
    7,333.39/10,991.82 = 3,638.28/x
  3. Step 3: Cross multiply
    7,333.39x = 10,991.82 × 3,638.28
  4. Step 4: Simplify right side
    7,333.39x = 39,991,318.87
  5. Step 5: Solve for x
    x = 39,991,318.87/7,333.39
  6. Step 6: Final answer
    x = 5,453.32

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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.