Home / 3,142.31-4,336.99-2,080.09

Finding the Fourth Proportional to 3,142.31, 4,336.99 and 2,080.09

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Solution

The fourth proportional to 3,142.31, 4,336.99 and 2,080.09 is: 2,870.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.31 : 4,336.99 = 2,080.09 : x
  2. Step 2: Convert to fraction form
    3,142.31/4,336.99 = 2,080.09/x
  3. Step 3: Cross multiply
    3,142.31x = 4,336.99 × 2,080.09
  4. Step 4: Simplify right side
    3,142.31x = 9,021,329.75
  5. Step 5: Solve for x
    x = 9,021,329.75/3,142.31
  6. Step 6: Final answer
    x = 2,870.93

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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.