Home / 2,080.62-2,871.29-1,149.12

Finding the Fourth Proportional to 2,080.62, 2,871.29 and 1,149.12

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Solution

The fourth proportional to 2,080.62, 2,871.29 and 1,149.12 is: 1,585.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.62 : 2,871.29 = 1,149.12 : x
  2. Step 2: Convert to fraction form
    2,080.62/2,871.29 = 1,149.12/x
  3. Step 3: Cross multiply
    2,080.62x = 2,871.29 × 1,149.12
  4. Step 4: Simplify right side
    2,080.62x = 3,299,459.64
  5. Step 5: Solve for x
    x = 3,299,459.64/2,080.62
  6. Step 6: Final answer
    x = 1,585.81

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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.