Home / 3,872.56-5,344.02-2,104.12

Finding the Fourth Proportional to 3,872.56, 5,344.02 and 2,104.12

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Solution

The fourth proportional to 3,872.56, 5,344.02 and 2,104.12 is: 2,903.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.56 : 5,344.02 = 2,104.12 : x
  2. Step 2: Convert to fraction form
    3,872.56/5,344.02 = 2,104.12/x
  3. Step 3: Cross multiply
    3,872.56x = 5,344.02 × 2,104.12
  4. Step 4: Simplify right side
    3,872.56x = 11,244,459.36
  5. Step 5: Solve for x
    x = 11,244,459.36/3,872.56
  6. Step 6: Final answer
    x = 2,903.62

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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.