Home / 2,712.21-3,742.79-1,517.12

Finding the Fourth Proportional to 2,712.21, 3,742.79 and 1,517.12

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Solution

The fourth proportional to 2,712.21, 3,742.79 and 1,517.12 is: 2,093.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.21 : 3,742.79 = 1,517.12 : x
  2. Step 2: Convert to fraction form
    2,712.21/3,742.79 = 1,517.12/x
  3. Step 3: Cross multiply
    2,712.21x = 3,742.79 × 1,517.12
  4. Step 4: Simplify right side
    2,712.21x = 5,678,261.56
  5. Step 5: Solve for x
    x = 5,678,261.56/2,712.21
  6. Step 6: Final answer
    x = 2,093.59

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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.