Home / 2,299.80-3,173.68-1,251.86

Finding the Fourth Proportional to 2,299.80, 3,173.68 and 1,251.86

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Solution

The fourth proportional to 2,299.80, 3,173.68 and 1,251.86 is: 1,727.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,299.80 : 3,173.68 = 1,251.86 : x
  2. Step 2: Convert to fraction form
    2,299.80/3,173.68 = 1,251.86/x
  3. Step 3: Cross multiply
    2,299.80x = 3,173.68 × 1,251.86
  4. Step 4: Simplify right side
    2,299.80x = 3,973,003.04
  5. Step 5: Solve for x
    x = 3,973,003.04/2,299.80
  6. Step 6: Final answer
    x = 1,727.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.