Home / 3,964.78-5,471.32-2,286.08

Finding the Fourth Proportional to 3,964.78, 5,471.32 and 2,286.08

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Solution

The fourth proportional to 3,964.78, 5,471.32 and 2,286.08 is: 3,154.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,964.78 : 5,471.32 = 2,286.08 : x
  2. Step 2: Convert to fraction form
    3,964.78/5,471.32 = 2,286.08/x
  3. Step 3: Cross multiply
    3,964.78x = 5,471.32 × 2,286.08
  4. Step 4: Simplify right side
    3,964.78x = 12,507,875.23
  5. Step 5: Solve for x
    x = 12,507,875.23/3,964.78
  6. Step 6: Final answer
    x = 3,154.75

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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.