Home / 3,199.42-4,412.70-2,080.72

Finding the Fourth Proportional to 3,199.42, 4,412.70 and 2,080.72

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Solution

The fourth proportional to 3,199.42, 4,412.70 and 2,080.72 is: 2,869.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,199.42 : 4,412.70 = 2,080.72 : x
  2. Step 2: Convert to fraction form
    3,199.42/4,412.70 = 2,080.72/x
  3. Step 3: Cross multiply
    3,199.42x = 4,412.70 × 2,080.72
  4. Step 4: Simplify right side
    3,199.42x = 9,181,593.14
  5. Step 5: Solve for x
    x = 9,181,593.14/3,199.42
  6. Step 6: Final answer
    x = 2,869.77

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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.