Home / 5,275.97-7,914.41-1,380.38

Finding the Fourth Proportional to 5,275.97, 7,914.41 and 1,380.38

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Solution

The fourth proportional to 5,275.97, 7,914.41 and 1,380.38 is: 2,070.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.97 : 7,914.41 = 1,380.38 : x
  2. Step 2: Convert to fraction form
    5,275.97/7,914.41 = 1,380.38/x
  3. Step 3: Cross multiply
    5,275.97x = 7,914.41 × 1,380.38
  4. Step 4: Simplify right side
    5,275.97x = 10,924,851.98
  5. Step 5: Solve for x
    x = 10,924,851.98/5,275.97
  6. Step 6: Final answer
    x = 2,070.68

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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.