Home / 2,371.21-3,268.15-2,099.66

Finding the Fourth Proportional to 2,371.21, 3,268.15 and 2,099.66

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Solution

The fourth proportional to 2,371.21, 3,268.15 and 2,099.66 is: 2,893.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,371.21 : 3,268.15 = 2,099.66 : x
  2. Step 2: Convert to fraction form
    2,371.21/3,268.15 = 2,099.66/x
  3. Step 3: Cross multiply
    2,371.21x = 3,268.15 × 2,099.66
  4. Step 4: Simplify right side
    2,371.21x = 6,861,982.24
  5. Step 5: Solve for x
    x = 6,861,982.24/2,371.21
  6. Step 6: Final answer
    x = 2,893.88

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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.