Home / 3,918.64-5,873.28-2,986.96

Finding the Fourth Proportional to 3,918.64, 5,873.28 and 2,986.96

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Solution

The fourth proportional to 3,918.64, 5,873.28 and 2,986.96 is: 4,476.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.64 : 5,873.28 = 2,986.96 : x
  2. Step 2: Convert to fraction form
    3,918.64/5,873.28 = 2,986.96/x
  3. Step 3: Cross multiply
    3,918.64x = 5,873.28 × 2,986.96
  4. Step 4: Simplify right side
    3,918.64x = 17,543,252.43
  5. Step 5: Solve for x
    x = 17,543,252.43/3,918.64
  6. Step 6: Final answer
    x = 4,476.87

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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.