Home / 3,561.21-5,338.73-1,999.94

Finding the Fourth Proportional to 3,561.21, 5,338.73 and 1,999.94

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Solution

The fourth proportional to 3,561.21, 5,338.73 and 1,999.94 is: 2,998.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561.21 : 5,338.73 = 1,999.94 : x
  2. Step 2: Convert to fraction form
    3,561.21/5,338.73 = 1,999.94/x
  3. Step 3: Cross multiply
    3,561.21x = 5,338.73 × 1,999.94
  4. Step 4: Simplify right side
    3,561.21x = 10,677,117.98
  5. Step 5: Solve for x
    x = 10,677,117.98/3,561.21
  6. Step 6: Final answer
    x = 2,998.17

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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.