Home / 5,172.30-7,137.45-3,076.02

Finding the Fourth Proportional to 5,172.30, 7,137.45 and 3,076.02

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Solution

The fourth proportional to 5,172.30, 7,137.45 and 3,076.02 is: 4,244.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.30 : 7,137.45 = 3,076.02 : x
  2. Step 2: Convert to fraction form
    5,172.30/7,137.45 = 3,076.02/x
  3. Step 3: Cross multiply
    5,172.30x = 7,137.45 × 3,076.02
  4. Step 4: Simplify right side
    5,172.30x = 21,954,938.95
  5. Step 5: Solve for x
    x = 21,954,938.95/5,172.30
  6. Step 6: Final answer
    x = 4,244.71

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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.