Home / 5,103.82-7,043.84-2,979.87

Finding the Fourth Proportional to 5,103.82, 7,043.84 and 2,979.87

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Solution

The fourth proportional to 5,103.82, 7,043.84 and 2,979.87 is: 4,112.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.82 : 7,043.84 = 2,979.87 : x
  2. Step 2: Convert to fraction form
    5,103.82/7,043.84 = 2,979.87/x
  3. Step 3: Cross multiply
    5,103.82x = 7,043.84 × 2,979.87
  4. Step 4: Simplify right side
    5,103.82x = 20,989,725.81
  5. Step 5: Solve for x
    x = 20,989,725.81/5,103.82
  6. Step 6: Final answer
    x = 4,112.55

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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.