Home / 5,127.88-7,076.47-2,770.02

Finding the Fourth Proportional to 5,127.88, 7,076.47 and 2,770.02

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Solution

The fourth proportional to 5,127.88, 7,076.47 and 2,770.02 is: 3,822.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.88 : 7,076.47 = 2,770.02 : x
  2. Step 2: Convert to fraction form
    5,127.88/7,076.47 = 2,770.02/x
  3. Step 3: Cross multiply
    5,127.88x = 7,076.47 × 2,770.02
  4. Step 4: Simplify right side
    5,127.88x = 19,601,963.43
  5. Step 5: Solve for x
    x = 19,601,963.43/5,127.88
  6. Step 6: Final answer
    x = 3,822.63

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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.