Home / 3,181.56-4,387.79-2,061.44

Finding the Fourth Proportional to 3,181.56, 4,387.79 and 2,061.44

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Solution

The fourth proportional to 3,181.56, 4,387.79 and 2,061.44 is: 2,842.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.56 : 4,387.79 = 2,061.44 : x
  2. Step 2: Convert to fraction form
    3,181.56/4,387.79 = 2,061.44/x
  3. Step 3: Cross multiply
    3,181.56x = 4,387.79 × 2,061.44
  4. Step 4: Simplify right side
    3,181.56x = 9,045,133.57
  5. Step 5: Solve for x
    x = 9,045,133.57/3,181.56
  6. Step 6: Final answer
    x = 2,842.99

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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.