Home / 5,282.52-7,921.36-2,816.68

Finding the Fourth Proportional to 5,282.52, 7,921.36 and 2,816.68

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Solution

The fourth proportional to 5,282.52, 7,921.36 and 2,816.68 is: 4,223.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,282.52 : 7,921.36 = 2,816.68 : x
  2. Step 2: Convert to fraction form
    5,282.52/7,921.36 = 2,816.68/x
  3. Step 3: Cross multiply
    5,282.52x = 7,921.36 × 2,816.68
  4. Step 4: Simplify right side
    5,282.52x = 22,311,936.28
  5. Step 5: Solve for x
    x = 22,311,936.28/5,282.52
  6. Step 6: Final answer
    x = 4,223.73

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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.