Home / 1,817.15-2,723.39-1,322.30

Finding the Fourth Proportional to 1,817.15, 2,723.39 and 1,322.30

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Solution

The fourth proportional to 1,817.15, 2,723.39 and 1,322.30 is: 1,981.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.15 : 2,723.39 = 1,322.30 : x
  2. Step 2: Convert to fraction form
    1,817.15/2,723.39 = 1,322.30/x
  3. Step 3: Cross multiply
    1,817.15x = 2,723.39 × 1,322.30
  4. Step 4: Simplify right side
    1,817.15x = 3,601,138.79
  5. Step 5: Solve for x
    x = 3,601,138.79/1,817.15
  6. Step 6: Final answer
    x = 1,981.76

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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.