Home / 3,872.68-5,344.29-2,104.31

Finding the Fourth Proportional to 3,872.68, 5,344.29 and 2,104.31

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Solution

The fourth proportional to 3,872.68, 5,344.29 and 2,104.31 is: 2,903.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.68 : 5,344.29 = 2,104.31 : x
  2. Step 2: Convert to fraction form
    3,872.68/5,344.29 = 2,104.31/x
  3. Step 3: Cross multiply
    3,872.68x = 5,344.29 × 2,104.31
  4. Step 4: Simplify right side
    3,872.68x = 11,246,056.25
  5. Step 5: Solve for x
    x = 11,246,056.25/3,872.68
  6. Step 6: Final answer
    x = 2,903.95

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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.