Home / 1,816.52-2,724.20-1,122.15

Finding the Fourth Proportional to 1,816.52, 2,724.20 and 1,122.15

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Solution

The fourth proportional to 1,816.52, 2,724.20 and 1,122.15 is: 1,682.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.52 : 2,724.20 = 1,122.15 : x
  2. Step 2: Convert to fraction form
    1,816.52/2,724.20 = 1,122.15/x
  3. Step 3: Cross multiply
    1,816.52x = 2,724.20 × 1,122.15
  4. Step 4: Simplify right side
    1,816.52x = 3,056,961.03
  5. Step 5: Solve for x
    x = 3,056,961.03/1,816.52
  6. Step 6: Final answer
    x = 1,682.87

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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.