Home / 5,171.90-7,755.02-2,051.78

Finding the Fourth Proportional to 5,171.90, 7,755.02 and 2,051.78

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Solution

The fourth proportional to 5,171.90, 7,755.02 and 2,051.78 is: 3,076.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.90 : 7,755.02 = 2,051.78 : x
  2. Step 2: Convert to fraction form
    5,171.90/7,755.02 = 2,051.78/x
  3. Step 3: Cross multiply
    5,171.90x = 7,755.02 × 2,051.78
  4. Step 4: Simplify right side
    5,171.90x = 15,911,584.68
  5. Step 5: Solve for x
    x = 15,911,584.68/5,171.90
  6. Step 6: Final answer
    x = 3,076.55

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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.