Home / 5,193.12-7,791.60-1,908.36

Finding the Fourth Proportional to 5,193.12, 7,791.60 and 1,908.36

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Solution

The fourth proportional to 5,193.12, 7,791.60 and 1,908.36 is: 2,863.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,193.12 : 7,791.60 = 1,908.36 : x
  2. Step 2: Convert to fraction form
    5,193.12/7,791.60 = 1,908.36/x
  3. Step 3: Cross multiply
    5,193.12x = 7,791.60 × 1,908.36
  4. Step 4: Simplify right side
    5,193.12x = 14,869,177.78
  5. Step 5: Solve for x
    x = 14,869,177.78/5,193.12
  6. Step 6: Final answer
    x = 2,863.25

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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.