Home / 3,936.54-5,908.40-2,478.30

Finding the Fourth Proportional to 3,936.54, 5,908.40 and 2,478.30

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Solution

The fourth proportional to 3,936.54, 5,908.40 and 2,478.30 is: 3,719.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.54 : 5,908.40 = 2,478.30 : x
  2. Step 2: Convert to fraction form
    3,936.54/5,908.40 = 2,478.30/x
  3. Step 3: Cross multiply
    3,936.54x = 5,908.40 × 2,478.30
  4. Step 4: Simplify right side
    3,936.54x = 14,642,787.72
  5. Step 5: Solve for x
    x = 14,642,787.72/3,936.54
  6. Step 6: Final answer
    x = 3,719.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.