Home / 3,076.38-4,247.64-2,881.98

Finding the Fourth Proportional to 3,076.38, 4,247.64 and 2,881.98

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Solution

The fourth proportional to 3,076.38, 4,247.64 and 2,881.98 is: 3,979.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,076.38 : 4,247.64 = 2,881.98 : x
  2. Step 2: Convert to fraction form
    3,076.38/4,247.64 = 2,881.98/x
  3. Step 3: Cross multiply
    3,076.38x = 4,247.64 × 2,881.98
  4. Step 4: Simplify right side
    3,076.38x = 12,241,613.53
  5. Step 5: Solve for x
    x = 12,241,613.53/3,076.38
  6. Step 6: Final answer
    x = 3,979.23

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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.