Home / 5,282.94-7,921.20-2,647.38

Finding the Fourth Proportional to 5,282.94, 7,921.20 and 2,647.38

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Solution

The fourth proportional to 5,282.94, 7,921.20 and 2,647.38 is: 3,969.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,282.94 : 7,921.20 = 2,647.38 : x
  2. Step 2: Convert to fraction form
    5,282.94/7,921.20 = 2,647.38/x
  3. Step 3: Cross multiply
    5,282.94x = 7,921.20 × 2,647.38
  4. Step 4: Simplify right side
    5,282.94x = 20,970,426.46
  5. Step 5: Solve for x
    x = 20,970,426.46/5,282.94
  6. Step 6: Final answer
    x = 3,969.46

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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.