Home / 5,110.50-7,052.43-2,872.34

Finding the Fourth Proportional to 5,110.50, 7,052.43 and 2,872.34

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Solution

The fourth proportional to 5,110.50, 7,052.43 and 2,872.34 is: 3,963.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.50 : 7,052.43 = 2,872.34 : x
  2. Step 2: Convert to fraction form
    5,110.50/7,052.43 = 2,872.34/x
  3. Step 3: Cross multiply
    5,110.50x = 7,052.43 × 2,872.34
  4. Step 4: Simplify right side
    5,110.50x = 20,256,976.79
  5. Step 5: Solve for x
    x = 20,256,976.79/5,110.50
  6. Step 6: Final answer
    x = 3,963.80

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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.