Home / 7,193.81-10,791.33-1,999.69

Finding the Fourth Proportional to 7,193.81, 10,791.33 and 1,999.69

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Solution

The fourth proportional to 7,193.81, 10,791.33 and 1,999.69 is: 2,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,193.81 : 10,791.33 = 1,999.69 : x
  2. Step 2: Convert to fraction form
    7,193.81/10,791.33 = 1,999.69/x
  3. Step 3: Cross multiply
    7,193.81x = 10,791.33 × 1,999.69
  4. Step 4: Simplify right side
    7,193.81x = 21,579,280.21
  5. Step 5: Solve for x
    x = 21,579,280.21/7,193.81
  6. Step 6: Final answer
    x = 2,999.70

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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.