Home / 1,816.70-2,722.84-1,293.88

Finding the Fourth Proportional to 1,816.70, 2,722.84 and 1,293.88

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Solution

The fourth proportional to 1,816.70, 2,722.84 and 1,293.88 is: 1,939.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.70 : 2,722.84 = 1,293.88 : x
  2. Step 2: Convert to fraction form
    1,816.70/2,722.84 = 1,293.88/x
  3. Step 3: Cross multiply
    1,816.70x = 2,722.84 × 1,293.88
  4. Step 4: Simplify right side
    1,816.70x = 3,523,028.22
  5. Step 5: Solve for x
    x = 3,523,028.22/1,816.70
  6. Step 6: Final answer
    x = 1,939.25

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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.